Mathematician:Mathematicians/Sorted By Birth/1901 - 1930 CE

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For more comprehensive information on the lives and works of mathematicians through the ages, see the MacTutor History of Mathematics archive, created by John J. O'Connor and Edmund F. Robertson.

The army of those who have made at least one definite contribution to mathematics as we know it soon becomes a mob as we look back over history; 6,000 or 8,000 names press forward for some word from us to preserve them from oblivion, and once the bolder leaders have been recognised it becomes largely a matter of arbitrary, illogical legislation to judge who of the clamouring multitude shall be permitted to survive and who be condemned to be forgotten.'
-- Eric Temple Bell: Men of Mathematics, 1937, Victor Gollancz, London

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Contents

$1901$ – $1910$

1901

February

Richard Dagobert Brauer (1901 – 1977)

German / American mathematician who worked mainly in abstract algebra.

Made important contributions to number theory.

Founder of modular representation theory.
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March

Otto Schreier (1901 – 1929)

Austrian mathematician who made great advances in group theory before dying unfortunately young of sepsis.
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May

Edouard Zeckendorf (1901 – 1983)

Belgian doctor, army officer and amateur mathematician, best known for Zeckendorf's Theorem.
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June

Raj Chandra Bose (1901 – 1987)

Indian American mathematician and statistician best known for his work in design theory, finite geometry and the theory of error-correcting codes.

Invented the notions of partial geometry, strongly regular graph.

Started a systematic study of difference sets to construct symmetric block designs.

Noted with Sharadchandra Shankar Shrikhande and Ernest Tilden Parker for disproving Euler's Conjecture on Orthogonal Latin Squares.
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August

Steven Vajda (1901 – 1995)

Hungarian mathematician whose main work was in game theory and mathematical programming.
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Edward Thomas Copson (1901 – 1980)

British mathematician best known for his textbooks in various fields.
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September

Kurt Otto Friedrichs (1901 – 1982)

German applied mathematician whose major contribution was his work on partial differential equations.
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October

François Le Lionnais (1901 – 1984)

French chemical engineer and writer, occasionally on mathematics.
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November

Ernest Nagel (1901 – 1985)

American philosopher of science, aligned with the logical positivist movement.
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December

Werner Karl Heisenberg (1901 – 1976)

German theoretical physicist who was one of the key pioneers of quantum mechanics.
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Frank J. Ayres, Jr. (1901 – 1994)

American mathematician best known for his text books.
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1902

Salomon Lubelski (1902 – c. 1941)

Polish mathematician who mainly workked in number theory.

Best known for being the founder of Acta Arithmetica with Arnold Walfisz.
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January

Karl Menger (1902 – 1985)

Austrian-American mathematician who worked on mathematics of algebras, algebra of geometries, curve and dimension theory.

Also contributed to game theory and social sciences.
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Alfred Tarski (1902 – 1983)

Polish mathematician who worked in several fields of mathematics, in particular logic.

Most famous for the Banach-Tarski Paradox (with Stefan Banach) in 1924.
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Joseph Warner Howe (1902 – 1983)

American physicist working mainly in the field of fluid mechanics and hydraulics.
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Oskar Morgenstern (1902 – 1977)

German-born economist notable for founding the field of game theory in collaboration with John von Neumann, and applying it to economics.
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February

Jovan Karamata (1902 – 1967)

Serbian mathematician working in analysis.

Introduced what is now known as Karamata notation for Stirling numbers.
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May

Leonard Henry Caleb Tippett (1902 – 1985)

English statistician, professionally known as L.H.C. Tippett or, occasionally, L.C. Tippett, who pioneered extreme value theory.
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Camillo Herbert Grötzsch (1902 – 1993)

Herbert Grötzsch was a German mathematician working mainly in graph theory
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June

Carolyn Eisele (1902 – 2000)

American mathematician and historian of mathematics known as an expert on the works of Charles Sanders Peirce.
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August

Paul Adrien Maurice Dirac (1902 – 1984)

English theoretical physicist who made fundamental contributions to the early development of both quantum mechanics and quantum electrodynamics.
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October

Hansraj Gupta (1902 – 1988)

Indian mathematician specialising in number theory, in particular the study of the partition function.
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November

Eugene Paul Wigner (1902 – 1995)

Hungarian-American theoretical physicist and mathematician.
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December

Hubert Stanley Wall (1902 – 1971)

American mathematician who worked primarily in the field of continued fractions.

One of the leading proponents of the Moore method of teaching.
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1903

February

Bartel Leendert van der Waerden (1903 – 1996)

Dutch mathematician and historian of mathematics.
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Frank Plumpton Ramsey (1903 – 1930)

British mathematican most famous for founding the field of what is now called Ramsey Theory.
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April

Marshall Harvey Stone (1903 – 1989)

American mathematician who contributed to real analysis, functional analysis, and the study of boolean algebras.
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John Francis Riordan (1903 – 1988)

American mathematician and the author of major early works in combinatorics.

Also contributed significantly to the world of literature and poetry.
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Andrey Nikolaevich Kolmogorov (1903 – 1987)

In Russian: Андрей Николаевич Колмогоров).

Russian mathematician active in various fields, including probability theory, topology and intuitionistic logic.
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June

Alonzo Church (1903 – 1995)

American mathematician who pioneered in the field of computability theory and the foundations of computer science.

Best known for his lambda calculus, Church's Theorem and Church's Thesis.
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July

Kurt Mahler (1903 – 1988)

German mathematician working mainly in analysis and number theory.

Proved the Prouhet-Thue-Morse constant and Champernowne constant to be transcendental.
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September

Andrey Andreyevich Markov Jr. (1903 – 1979)

Soviet mathematician working in the fields of topology, mathematical logic and several others.
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November

Robert Pollock Gillespie (1903 – 1977)

Scottish mathematician who published several important books on mathematics.
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December

John von Neumann (1903 – 1957)

Hungarian-American mathematician who made major contributions to a vast range of fields, including set theory, functional analysis, quantum mechanics, ergodic theory, continuous geometry, economics, computer science, numerical analysis and statistics, to name but a few.

Founded the field of game theory in collaboration with Oskar Morgenstern.

Generally regarded as one of the foremost mathematicians in modern history.
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1904

April

Philip Hall (1904 – 1982)

English mathematician active in the field of group theory.
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May

Edward James McShane (1904 – 1989)

American mathematician noted for his advancements of the calculus of variations, integration theory, stochastic calculus, and exterior ballistics.
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June

John Greenlees Semple (1904 – 1985)

British mathematician whose most important work was in algebraic geometry.
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July

Carew Arthur Meredith (1904 – 1976)

Irish mathematician and logician best known for his work on development of the shortest known axiomatic bases for logical systems.

Developed the technique of condensed detachment, which is particularly convenient for use in automated theorem solvers.
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October

Hans Lewy (1904 – 1988)

German born American mathematician, known for his work on partial differential equations and on the theory of functions of several complex variables.
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Ingebrigt Johansson (1904 – 1987)

Norwegian mathematician and logician best known for inventing minimal logic.
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December

William Hunter McCrea (1904 – 1999)

Irish mathematician, physicist and astronomer who specialised in solar physics.
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1905

January

Dattathreya Ramchandra Kaprekar (1905 – 1986)

Indian recreational mathematician who described several classes of natural numbers including the Kaprekar, Harshad and Self numbers and discovered the Kaprekar constant, named after him.
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February

Rózsa Péter (1905 – 1977)

Hungarian mathematician best known for her work in recursion theory.
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October

Wilhelm Ljunggren (1905 – 1973)

Norwegian mathematician, specializing in number theory.
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November

Albert William Tucker (1905 – 1995)

Canadian mathematician who made important contributions in topology, game theory, and non-linear programming.
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December

Derrick Henry Lehmer (1905 – 1991)

Derrick Henry ("Dick") Lehmer was an American mathematician active mainly in the field of number theory.

Most famous for designing the Lucas-Lehmer Test for determining the primality of Mersenne numbers.

The son of Derrick Norman Lehmer, and married to Emma Lehmer, née Trotskaia.
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1906

Hunter Rouse (1906 – 1996)

American physicist working mainly in the field of fluid mechanics and hydraulics.
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February

Edward Maitland Wright (1906 – 2005)

Sir Edward Maitland Wright was an English mathematician best known for co-authoring the 1938 work An Introduction to the Theory of Numbers, with G.H. Hardy.
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April

Kurt Friedrich Gödel (1906 – 1978)

Austrian mathematician who emigrated to the U.S.A. in 1940.

Famous for his first and second incompleteness theorems.
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May

André Weil (1906 – 1998)

French mathematician who known for his foundational work in number theory and algebraic geometry.

Founding member and early leader of the Bourbaki group.
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June

Max August Zorn (1906 – 1993)

German-born American mathematician who worked in algebra, set theory and numerical analysis.

Best known for Zorn's Lemma, which he discovered in 1935. This is also known as the Kuratowski-Zorn Lemma, thereby acknowledging the work of Kazimierz Kuratowski who had published a version of it in 1922.
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July

Daniel Edwin Rutherford (1906 – 1966)

British mathematician, known as Dan Rutherford, who mainly worked on abstract algebra, vector analysis and fluid mechanics, among various others.
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October

Alexander Osipovich Gelfond (1906 – 1968)

Russian mathematician and prolific writer (Russian: Алекса́ндр О́сипович Ге́льфонд) best known for the Gelfond-Schneider Theorem.

Established in $1929$ that $e^\pi$ is transcendental.
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Andrey Nikolayevich Tychonoff (1906 – 1993)

Russian mathematician best known for his work in topology.
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November

Carl Benjamin Boyer (1906 – 1976)

American historian of mathematics and science.
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Emma Markovna Lehmer (1906 – 2007)

Emma Markovna Lehmer (née Trotskaia) was a Russian-born mathematician active mainly in the field of number theory.

The wife of Derrick Henry ("Dick") Lehmer, with whom she was a frequent collaborator.
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1907

James Roy Newman (1907 – 1966)

American mathematician and historian of mathematics best known for his writings and popularisations.
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January

Raymond Edward Alan Christopher Paley (1907 – 1933)

English mathematician who worked mainly on of real-variable techniques in complex analysis.
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February

Harold Scott MacDonald Coxeter (1907 – 2003)

British-born Canadian mathematician who is best known for his work in geometry.
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March

Hassler Whitney (1907 – 1989)

American mathematician who worked mainly in topology.
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April

Lars Valerian Ahlfors (1907 – 1996)

Finnish mathematician noted for his work in analysis.
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May

Holbrook Mann MacNeille (1907 – 1973)

American mathematician who worked for the United States Atomic Energy Commission before becoming the first Executive Director of the American Mathematical Society.
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Boris Anastasyevich Kordemsky (1907 – 1999)

Russian mathematician and educator, best known for his popular science books and mathematical puzzles.
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Karl Johannes Herbert Seifert (1907 – 1996)

German mathematician who worked mainly in topology and knot theory.

Collaborated extensively with William Threlfall.

One of the few who managed to weather the 2nd World War without upsetting either the Nazis or the Allies.
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September

Maurice George Kendall (1907 – 1983)

English mathematician who made significant contributions to statistics.
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Edwin Mattison McMillan (1907 – 1991)

American physicist and working in nuclear science.

Also worked on the mathematics of computation.
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October

Sarvadaman D.S. Chowla (1907 – 1995)

British-born Indian American mathematician who worked mainly in number theory.
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Harold Davenport (1907 – 1969)

English mathematician who worked mainly in number theory.
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November

Edward Marczewski (1907 – 1976)

Polish mathematician who worked in mainly in the fields of measure theory, descriptive set theory, general topology, probability theory and universal algebra.
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December

John Barkley Rosser Sr. (1907 – 1989)

American logician best known for his work in mathematical logic.
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1908

Meyer Abraham Girshick (1908 – 1955)

Russian mathematician who worked in game theory.
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March

Theodore Samuel Motzkin (1908 – 1970)

German-born Israeli-American mathematician who was one of the pioneers of linear programming.

Also published in the fields of algebra, graph theory, approximation theory, combinatorics, numerical analysis, algebraic geometry and number theory.

Worked as a cryptographer for the British government during World War II.
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April

John Charles Chenoweth McKinsey (1908 – 1953)

American mathematician best known for his work on mathematical logic and game theory. He also made significant contributions to modal logic.
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May

Morris Kline (1908 – 1992)

American physicist, mathematics teacher, historian, and agitator for the teaching of the New Mathematics in schools.
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June

Willard Van Orman Quine (1908 – 2000)

Legendary American philosopher and logician, known by his friends as Van.

Proposed three systems of axiomatic set theory.

The word quine was coined by Douglas R. Hofstadter in his classic 1979 work Gödel, Escher, Bach: an Eternal Golden Braid, in which what is now known as Quine's paradox was discussed at length.

The word quine is now used for a computer program whose output is itself.
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September

Lev Semenovich Pontryagin (1908 – 1988)

Lev Semenovich Pontryagin (Russian: Лев Семёнович Понтрягин) made major discoveries, mainly in the field of geometric topology.
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October

Sergei Lvovich Sobolev (1908 – 1989)

Sergei Lvovich Sobolev (Russian: Серге́й Льво́вич Со́болев) worked mainly in the fields of analysis and partial differential equations.
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1909

January

Stephen Cole Kleene (1909 – 1994)

American mathematician best known as one of the great pioneers in the field of recursion theory.
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February

Claude Chevalley (1909 – 1984)

French mathematician who made important contributions to number theory, algebraic geometry, class field theory, finite group theory, and the theory of algebraic groups.

Founding member of the Bourbaki group.
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April

Stanisław Marcin Ulam (1909 – 1984)

Polish-American mathematician who participated in America's Manhattan Project.

Originated the Teller-Ulam design of thermonuclear weapons.

Invented the Monte Carlo method of computation.

Suggested the concept of nuclear pulse propulsion.

Also worked in the fields of both pure and applied mathematics.
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July

Arthur Sard (1909 – 1980)

American mathematician, famous for his work in differential topology and in spline interpolation.
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August

Saunders Mac Lane (1909 – 2005)

American mathematician who cofounded category theory with Samuel Eilenberg.

Introduced the diagrammatic approach to mathematics, in particular pioneering the use of commutative diagrams.
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Florence Nightingale David (1909 – 1993)

English mathematician noted for her work in statistics.
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October

Bernhard Hermann Neumann (1909 – 2002)

German-born mathematician who was one of the leaders in the field of group theory.

Husband of Hanna Neumann and father of Peter Michael Neumann.
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November

Gerhard Gentzen (1909 – 1945)

Full name: Gerhard Karl Erich Gentzen.

German mathematician and logician who made progress in symbolic logic.

Proved that the Peano axioms are consistent.
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1910

June

Fritz John (1910 – 1994)

German mathematician best known for his work on partial differential equations and ill-posed problems.
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July

Lothar Collatz (1910 – 1990)

German mathematician best known for posing the Collatz Conjecture.
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August

Tjalling Charles Koopmans (1910 – 1985)

Dutch American mathematician and economist.
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October

Cahit Arf (1910 – 1997)

Turkish mathematician best known for his work in abstract algebra and algebraic number theory.
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Nathan Jacobson (1910 – 1999)

Polish-American mathematician mainly working in abstract algebra.

Student of Joseph Henry Maclagan Wedderburn.

Known as Jake to his friends and colleagues.
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November

Hua Luogeng (1910 – 1985)

Chinese mathematician famous for his important contributions to number theory and for his role as the leader of mathematics research and education in the People's Republic of China.
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December

Charles Alfred Coulson (1910 – 1974)

British mathematician whose main area of research was in applications to molecular physical chemistry.

Published widely in the field of applied mathematics.
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Helmut Wielandt (1910 – 2001)

German mathematician whose main work was in group theory, especially permutation groups.
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$1911$ – $1920$

1911

Anthony Perry Morse (1911 – 1984)

American mathematician who worked both in analysis, especially measure theory, and in the foundations of mathematics.
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January

Dov Jarden (1911 – 1986)

Israeli mathematician, writer and linguist best known for his published works.
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George Joseph Stigler (1911 – 1991)

American economist.
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Garrett Birkhoff (1911 – 1996)

American mathematician mainly working in mathematical physics and abstract algebra.

Also wrote plenty of text books: his Lattice Theory (1940) is much cited.

The son of George David Birkhoff.
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February

Alexander Kirkland Cairncross (1911 – 1998)

British economist.
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March

Walter Ledermann (1911 – 2009)

German mathematician best known for his work in homology, group theory and number theory.
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April

Walter Warwick Sawyer (1911 – 2008)

British mathematician best known for the books he wrote, especially Mathematician's Delight and Prelude to Mathematics.
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May

Theodor Schneider (1911 – 1988)

German mathematician best known for providing a proof of the Gelfond-Schneider Theorem.
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John Todd (1911 – 2007)

Northern Irish mathematician who was a pioneer in the field of numerical analysis.
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June

Ernst Witt (1911 – 1991)

German mathematician working mainly in the field of quadratic forms and algebraic function fields.
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October

John William Wrench, Jr. (1911 – 2009)

American mathematician working mainly in numerical analysis.

Pioneer of the use of computers for mathematical calculations

Best known now for his work with Daniel Shanks to calculate $\pi$ to $100 \, 000$ decimal places.
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November

Raphael Mitchel Robinson (1911 – 1995)

American mathematician who worked on mathematical logic, set theory, geometry, number theory and combinatorics.

One of the early computer pioneers, he implemented a program for the Lucas-Lehmer Test and in 1952 determined or confirmed the primality of all the Mersenne numbers up to $M_{2304}$. In the process, he discovered the Mersenne primes $M_{521}, M_{607}, M_{1279}, M_{2203}$ and $M_{2281}$.
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1912

May

Hans Julius Zassenhaus (1912 – 1991)

German mathematician who did significant work in abstract algebra, and also pioneered the science of computer algebra.
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June

Arthur Norton Milgram (1912 – 1961)

American mathematician who worked on functional analysis, combinatorics, differential geometry, topology, partial differential equations, and Galois theory.
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Alan Mathison Turing (1912 – 1954)

English mathematician who is often considered to be the "father of modern computer science".

Famous for his role in cracking the Enigma cipher in World War II, his conception of the Turing machine and the idea of the Turing test.
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July

David Gawen Champernowne (1912 – 2000)

English economist and mathematician, famous for proving that the number now known as the Champernowne constant is normal.
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Tibor Gallai (1912 – 1992)

Hungarian mathematician who worked in combinatorics, especially in graph theory.
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August

Ralph Philip Boas, Jr. (1912 – 1992)

American mathematician, teacher, and journal editor, working mainly in the fields of real and complex analysis.

Best known for his humorous applications of mathematical theorems to the practical purpose of hunting lions.
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1913

Arne E. Broman (1913 – 1995)

Swedish mathematician who primarily contributed to analysis.
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Charles Stanley Ogilvy (1913 – 2000)

American mathematician also well-known for being a sailor.
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January

Karl Stein (1913 – 2000)

German mathematician well known for complex analysis and cryptography.
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March

Paul Erdős (1913 – 1996)

Hungarian mathematician known for the vast quantity of work he did (approximately 1500 papers).

Spent his entire life travelling the world looking for interesting mathematical problems to solve.

Perhaps most famous for his widespread collaborations (about 500 collaborators), from which the concept of the Erdős Number emerged.
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June

Paul Julius Oswald Teichmüller (1913 – 1943)

German mathematician who introduced quasiconformal mappings and differential geometric methods into complex analysis.

Usually known as Oswald Teichmüller.
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September

Israel Moiseevich Gelfand (1913 – 2009)

Soviet and Russian mathematician who contributed considerably to many branches of mathematics, including group theory, representation theory and linear algebra.

Did much good work in the field of education.
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Abraham Charnes (1913 – 1992)

American mathematician who worked in the area of operations research.
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Samuel Eilenberg (1913 – 1998)

Polish-born American mathematician whose main field of activity were homology theory and category theory.
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November

Andrzej Mostowski (1913 – 1975)

Polish mathematician, best known for the Mostowski Collapse Lemma.
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1914

February

Hanna Neumann (1914 – 1971)

Full maiden name: Johanna von Caemmerer.

German-born mathematician active in the field of group theory.

Wife of Bernhard Hermann Neumann and mother of Peter Michael Neumann.
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March

Leonidas Alaoglu (1914 – 1981)

Canadian-American mathematician, most noted for his contribution towards the Banach-Alaoglu Theorem.
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June

Rufus Philip Isaacs (1914 – 1981)

American game theorist known for his work on differential games.
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July

William Wager Cooper (1914 – 2012)

American operations researcher known for developing the field of linear programming.
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September

Robert Osher Schlaifer (1914 – 1994)

American statistician who was one of the pioneers of Bayesian decision theory.
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October

Martin Gardner (1914 – 2010)

American mathematician and magician best known for the books he wrote (of which there were many) popularizing mathematics and science.

Author of the Mathematical Games column in Scientific American between 1956 and 1981. This position was taken over by Douglas R. Hofstadter.

Also contributed a series of "puzzle page" articles for Isaac Asimov's Science Fiction Magazine in the late 1970's to early 1980's.

Also wrote a column called Notes of a Fringe Watcher (originally Notes of a Psi-Watcher) from 1983 to 2002 for the Committee for Skeptical Inquiry's periodical Skeptical Inquirer.
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1915

Milton Abramowitz (1915 – 1958)

American mathematician who made his mark co-editing the Handbook of Mathematical Functions with Irene Ann Stegun.
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Robert Henry Sorgenfrey (1915 – 1995)

American mathematician who made significant contributions to the field of topology.
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January

Yuri Vladimirovich Linnik (1915 – 1972)

Soviet mathematician active in number theory, probability theory and mathematical statistics.
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Herbert Ellis Robbins (1915 – 2001)

American mathematician and statistician who did research in topology, measure theory, statistics, and a variety of other fields.
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February

Richard Wesley Hamming (1915 – 1998)

American mathematician best known for his work on error-detecting codes.

Thus he started a new field of study within information theory.
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March

Harold Neville Vazeille Temperley (1915 – 2017)

English applied mathematician who made numerous contributions to the fields of statistical mechanics, graph theory and the physics of liquids and gases
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April

Daniel Martin (1915 – 2007)

British mathematician working mainly as a teacher of calculus.
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June

John Wilder Tukey (1915 – 2000)

American mathematician working mainly in the field of statistics.

Best known for development of the FFT algorithm and box plot.
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September

Yehoshua Bar-Hillel (1915 – 1975)

Austrian-born Israeli philosopher, mathematician, and linguist.

Best known for his pioneering work in machine translation and formal linguistics.
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October

Ivan Morton Niven (1915 – 1999)

Canadian-American mathematician, most noted for solving most of Waring's Problem.

Also notable for Niven numbers and Niven's constant.
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November

Wilfred Kaplan (1915 – 2007)

American professor of mathematics whose research focused on dynamical systems, the topology of curve families, complex function theory, and differential equations.
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Bryant Tuckerman (1915 – 2002)

American mathematician who discovered, on March 4th, $1971$, the 24th Mersenne prime: $2^{19 \, 937} - 1$.
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1916

March

Paul Richard Halmos (1916 – 2006)

Hungarian-born mathematician who made fundamental advances in the areas of probability theory, statistics, operator theory, ergodic theory and functional analysis (in particular, Hilbert spaces).

Also famous for his widely-cited book Naive Set Theory.
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May

Selmer Martin Johnson (1916 – 1996)

American mathematician working on number theory and optimisation problems.
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September

Anthony Henry Basson (1916 – 2004)

English mathematician specialising in symbolic logic.
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Richard Kenneth Guy (b. 1916 )

English mathematician active in the fields of game theory, number theory and graph theory.
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October

Nathan Jacob Fine (1916 – 1994)

American mathematician who worked on basic hypergeometric series.

Best known for his lecture notes on the subject which were used as a standard, until they were finally published as a book.

Solved the Jeep Problem in $1946$.
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Robert Dorfman (1916 – 2002)

American mathematician who made contributions to the fields of economics, group testing and in the process of coding theory.
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November

Roger Apéry (1916 – 1994)

Greek-French mathematician most remembered for Apéry's Theorem.
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December

John Leroy Kelley (1916 – 1999)

American mathematician best known for his work on topology and functional analysis.

Author of the widely-used and -cited textbook General Topology, and others.
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Irving John Good (1916 – 2009)

British mathematician of Polish ancestry who worked as a cryptologist at Bletchley Park with Alan Turing.

Subsequently focused on the design of computers and Bayesian statistics.
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1917

January

Daniel Shanks (1917 – 1996)

American mathematician who worked primarily in numerical analysis and number theory.

Best known as the first to compute $\pi$ to $100 \, 000$ decimal places.
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Graham Higman (1917 – 2008)

English mathematician active in the field of group theory.
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March

Irving Kaplansky (1917 – 2006)

Canadian mathematician who made major contributions to group theory, ring theory, the theory of operator algebras and field theory.
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May

William Thomas Tutte (1917 – 2002)

English codebreaker and mathematician working on the foundations of graph theory and matroid theory.

Made a fundamental breakthrough in cryptanalysis of the Lorenz cipher, which contributed significantly to the defeat of Germany in the Second World War.
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June

Atle Selberg (1917 – 2007)

Norwegian mathematician known for his work in analytic number theory, and in the theory of automorphic forms.

Instrumental in developing a proof of the Prime Number Theorem. Engaged in a bitter dispute with Paul Erdős over priority.
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July

Patrick Alfred Pierce Moran (1917 – 1988)

Pat Moran was an Australian statistician who established some significant results in probability.

The Moran medal was named in his honour.
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Irving Marmer Copi (1917 – 2002)

American philosopher and mathematician best known for his university textbooks.
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September

Kai Lai Chung (1917 – 2009)

Chinese American mathematician known for his significant contributions to modern probability theory.
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October

Sharadchandra Shankar Shrikhande (b. 1917 )

Indian mathematician with distinguished and well-recognized achievements in combinatorial mathematics.

Noted with Raj Chandra Bose and Ernest Tilden Parker for disproving Euler's Conjecture on Orthogonal Latin Squares.
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November

Leonard Jimmie Savage (1917 – 1971)

American mathematician who worked on metric and differential geometry, calculus of variations and statistics.
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Elizabeth Leonard Scott (1917 – 1988)

American mathematician active in the field of group theory, but more well-known for her work in astronomy.

Also involved (with Jerzy Neyman) in the science of rainmaking by cloud seeding.
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December

Sergei Vasilovich Fomin (1917 – 1975)

Russian mathematician best known for his contribution towards the book Introductory Real Analysis.
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1918

February

Geoffrey Thomas Kneebone (1918 – 2003)

British mathematician who worked in geometry, set theory and mathematical logic.

Best known for his collaborative writings with John Greenlees Semple.
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May

Francis John Anscombe (1918 – 2001)

English statistician best known for emphasising the importance of randomisation.
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June

Carl-Erik Fröberg (1918 – 2007)

Swedish computer scientist and physicist.

One of the pioneers in the field of numerical analysis.
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July

Nicolaas Govert de Bruijn (1918 – 2012)

Dutch mathematician known for his contributions to analysis, number theory, combinatorics and logic.
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December

Leon Mirsky (1918 – 1983)

Russian-born mathematician who worked mainly in the fields of number theory, linear algebra and combinatorics
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1919

Jacques Dutka (1919 – 2002)

American mathematician who was the first to calculate the square root of $2$ to more than one million digits.

Also wrote extensively on the history of mathematics.
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Harry Pollard (1919 – 1985)

American mathematician noted for his work in celestial mechanics and the $n$-body problem.
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February

Irene Ann Stegun (1919 – 2008)

American mathematician who took over the work of co-editing the Handbook of Mathematical Functions from Milton Abramowitz, who died in 1958 before the work was complete.
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April

Thomas James Willmore (1919 – 2005)

British mathematician best known for his work on differential geometry.
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Richard Friederich Arens (1919 – 2000)

German-born American mathematician who worked in the fields of functional analysis and topology.
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David Harold Blackwell (1919 – 2010)

American mathematician who focused mainly on statistics and game theory.
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May

Raymond Merrill Smullyan (1919 – 2017)

Raymond Merrill Smullyan (known as "Ray") was an American mathematician and logician, noted for the accessibility of his books on logic.

He also was a concert pianist and magician.
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August

Vladimir Abramovich Rokhlin (1919 – 1984)

Name in Russian: Владимир Абрамович Рохлин.

Noted for his work in topology.
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October

Gerhard Ringel (1919 – 2008)

German mathematician who was one of the pioneers in the field of graph theory.
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December

Donald Kalish (1919 – 2000)

American logician, also known as an activist against the Vietnam war.
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Julia Hall Bowman Robinson (1919 – 1985)

American mathematician best known for her work on decision problems and Hilbert's Tenth Problem.

Born Julia Hall Bowman.
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Ian Naismith Sneddon (1919 – 2000)

British applied mathematician who is most noted for his work researching elasticity.
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1920

William Kay Smith (1920 – 2007)

American mathematician working in education and real analysis.
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January

Heinz Zemanek (1920 – 2014)

Austrian computer pioneer who led the development, from 1954 to 1958, of Mailüfterl ("May breeze"), one of the first completely transistorised computers in continental Europe.
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Isaac Asimov (1920 – 1992)

Russian-born professor of biochemistry, best known for his works of science fiction and for his popular science books.

One of the most hugely prolific and influential writers of all time.
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John Maynard Smith (1920 – 2004)

English theoretical evolutionary biologist and geneticist.

Originally an aeronautical engineer during the Second World War.

Instrumental in the application of game theory to evolution.
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March

Jerzy Maria Michał Łoś (1920 – 1998)

Polish mathematician, best known for his work on ultraproducts, in particular for Łoś's Theorem.
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August

Richard Ernest Bellman (1920 – 1984)

American applied mathematician, who introduced dynamic programming in 1953, and important contributions in other fields of mathematics.
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October

Carlton Edward Lemke (1920 – 2004)

American mathematician, working in Algebra, Mathematical Programming, Operations Research, and Statistics.

Also contributed to game theory.

Developed the dual simplex method in $1954$, independently from E.M.L. Beale.

With J.T. Howson, Constructed an algorithm in $1964$ for finding Nash equilibria the case of finite two-person games, for which he received the John von Neumann Theory Prize in $1978$.
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November

Claude Ambrose Rogers (1920 – 2005)

English mathematician who worked in analysis and geometry.
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Anthony Philip French (b. 1920 )

English professor of physics whose main interest is undergraduate physics education.
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December

Kenneth Eugene Iverson (1920 – 2004)

Canadian computer scientist best known for his invention of the computer language APL.

Also known for the notation known as Iverson's convention.
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Victor Abramovich Zalgaller (b. 1920 )

Russian mathematician, working in the fields of geometry and optimization.

Best known for his results on convex polyhedra, linear and dynamic programming, isoperimetry, and differential geometry.
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$1921$ – $1930$

1921

Marion Kirkland Fort, Jr (1921 – 1964)

M. K. Fort, Jr., known as Kirk, was an American mathematician specialising in topology.
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Robert Clay Prim (b. 1921 )

American mathematician working mainly in the field of computer science.
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March

Isaak Moiseyevich Yaglom (1921 – 1988)

Исаа́к Моисе́евич Ягло́м was a Soviet Russian mathematician whose wrote many popular works.

The twin brother of Akiva Moiseyevich Yaglom.
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Akiva Moiseyevich Yaglom (1921 – 2007)

Аки́ва Моисе́евич Ягло́м was a Soviet Russian physicist, mathematician, statistician, and meteorologist, best known for his contributions to the statistical theory of turbulence and theory of random processes.

The twin brother of Isaak Moiseyevich Yaglom.
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April

Thomas Crombie Schelling (1921 – 2016)

American economist and professor of foreign policy, national security, nuclear strategy, and arms control.

An authority on game theory.
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Leon Albert Henkin (1921 – 2006)

American logician best known for Henkin's Completeness Proof.
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May

Walter Rudin (1921 – 2010)

Austrian-born American mathematician best known for the widely-used college textbooks he wrote.
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June

Harry Jeannot Lipkin (b. 1921 )

American-born Israeli theoretical physicist specializing in nuclear physics and elementary particle physics.
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Verner Emil Hoggatt Jr. (1921 – 1980)

American mathematician, known mostly for his work in Fibonacci numbers and number theory.

Founder of the Fibonacci Association.
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September

Yurii Mikhailovich Smirnov (1921 – 2007)

Юрий Михайлович Смирнов was a Russian mathematician who specialised in topology.
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Pierre Samuel (1921 – 2009)

French mathematician working mainly in the fields of commutative algebra and algebraic geometry.

A second-generation member of the Bourbaki group.

Best known (and greatly appreciated) for the books he wrote.

Politically active in the spheres of social justice and environmentalism.
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November

Gerd Edzard Harry Reuter (1921 – 1992)

Harry Reuter was a German-born mathematician who emigrated to Britain who worked mainly in the fields of probability theory and analysis.
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December

Angelo Margaris (1921 – 2006)

American mathematician best known for his textbook First Order Mathematical Logic.
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1922

Tudor Ganea (1922 – 1971)

Romanian mathematician, known for his work in algebraic topology, especially homotopy theory.
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Ben Noble (1922 – 2006)

British mathematician best known for his work in numerical analysis.
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February

Cornelis Gerrit Lekkerkerker (1922 – 1999)

Dutch mathematician who worked on analytic and geometric number theory. Later he worked on topics in functional analysis.
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Ernst Gabor Straus (1922 – 1983)

German-American mathematician who helped found the theories of Euclidean Ramsey theory and of the arithmetic properties of analytic functions.

Worked as the assistant to Albert Einstein.
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March

Patrick Colonel Suppes (1922 – 2014)

American philosopher who has written on a variety of subjects, including mathematics.
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June

Friend Hans Kierstead, Jr. (1922 – 2008)

American mathematician who was the problem editor of the Journal of Recreational Mathematics.
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Henry Andrew Kierstead (1922 – 1990)

American mathematician who contributed to the Journal of Recreational Mathematics.
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November

George Brown Arfken (b. 1922 )

American theoretical physicist and author of several mathematical physics texts.
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1923

Harvey Cohn (1923 – 2014)

American mathematician who majored in number theory.

Pioneered the use of computers for mathematical investigations.
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January

Philip J. Davis (1923 – 2018)

American mathematician whose main work is in numerical analysis and approximation theory.
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Maks Aizikovich Akivis (b. 1923 )

Russian mathematician who worked mainly in the fields of differential geometry and linear algebra.

Student of Israel Moiseevich Gelfand.
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Gertrude Ehrlich (b. 1923 )

Austrian American mathematics professor working in algebra and abstract algebra.
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March

Israel Nathan Herstein (1923 – 1988)

Polish-born mathematician who worked on a variety of areas of algebra, including ring theory.
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April

George Spencer-Brown (1923 – 2016)

British mathematician, philosopher and crackpot best known for his book Laws of Form.

Made claims to the proofs of some famous hypotheses, but these were never validated.
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Peter John Hilton (1923 – 2010)

English mathematician best known for his work as a code-breaker at Bletchley Park during the Second World War, where he helped break the Lorenz cipher.

His academic interests lay in homotopy theory.
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August

William Judson LeVeque (1923 – 2007)

American mathematician and administrator who worked primarily in number theory.
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Tom Mike Apostol (1923 – 2016)

American mathematician of Greek origin best known for his textbooks and skill as a teacher.
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September

Peter Karl Henrici (1923 – 1987)

Swiss mathematician best known for his contributions to the field of numerical analysis.
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Raoul Bott (1923 – 2005)

Hungarian-American mathematician known for numerous basic contributions to geometry.
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October

Murray Ralph Spiegel (1923 – 1991)

American mathematician whose main body of work consists of a series of technical books on applied mathematics.
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1924

David Borwein (b. 1924 )

Canadian mathematician of Lithuanian origin, best known for his research in the summability theory of series and integrals.

Also working in measure theory and probability theory, number theory, and approximate subgradients and coderivatives, and the properties of single- and many-variable sinc integrals.
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Howard Raiffa (b. 1924 )

American mathematician who mainly works in game theory and economics.
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January

Paul Moritz Cohn (1924 – 2006)

German-born mathematician renowned as an expert in abstract algebra, in particular non-commutative rings.
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February

Steven Alexander Gaal (1924 – 2016)

Hungarian-American mathematician known for his writings on topology.
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May

Eugene Borisovich Dynkin (b. 1924 )

Russian mathematician (Евге́ний Бори́сович Ды́нкин), whose work is in probability and algebra.
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June

László Fuchs (b. 1924 )

Hungarian-American mathematician known for his research and textbooks in group theory and abstract algebra.
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July

David Roxbee Cox (b. 1924 )

British mathematician working mainly in the field of statistics.
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November

Benoît B. Mandelbrot (1924 – 2010)

French-American mathematician of Polish origin famous for his work on fractals.

The Mandelbrot set is named for him.
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December

John Warner Backus (1924 – 2007)

American computer scientist, significantly involved in the development of several computer languages, including ALGOL and FORTRAN.

The metalanguage Backus-Naur Form (BNF) was named after him (who invented it) and Peter Naur (who refined it).
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Mary Ellen Rudin (1924 – 2013)

American topologist best known for creating counterexamples to conjectures in point-set topology, and especially for being the first person to construct a Dowker Space, disproving a long-standing conjecture.

Born Mary Ellen Estill, under which name she published several papers before her marriage.
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1925

Jun-iti Nagata (1925 – 2007)

Jun-iti Nagata (長田 潤, also rendered Nagata Jun'ichi) was a Japanese mathematician specializing in topology.
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George Finlay Simmons (b. 1925 )

American mathematician who has worked in topology and classical analysis.

Renowned for both his teaching abilities and his first-class text books.
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March

Gabriel Andrew Dirac (1925 – 1984)

Swiss mathematician who mainly worked in graph theory.

Stepson of Paul Dirac and nephew of Eugene Wigner.
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May

Robert Duncan Luce (b. 1925 )

American mathematician known for his work in game theory and economics.
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George Leitmann (b. 1925 )

American control theorist considered one of the leading authorities in optimal control theory and its applications.
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July

Harold William Kuhn (1925 – 2014)

American mathematician who studied game theory.
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1926

Ernest Tilden Parker (1926 – 1991)

American mathematician best known for disproving Euler's Conjecture on Orthogonal Latin Squares with Sharadchandra Shankar Shrikhande and Raj Chandra Bose.
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John C. Shepherdson (b. 1926 )

Professor emeritus at the University of Bristol, England.

Co-designer (with Howard E. Sturgis) of the Unlimited Register Machine, a refinement of the Turing machine.
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January

Donald John Lewis (1926 – 2015)

American mathematician specializing in number theory.
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Gaisi Takeuti (1926 – 2017)

Japanese mathematician specialising in logic and set theory.
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February

James Alexander Green (1926 – 2014)

Scottish mathematician who worked in the field of representation theory.
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March

Martin Shubik (b. 1926 )

American economist, who is Professor Emeritus of Mathematical Institutional Economics at Yale University.
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April

Robert Lawson Vaught (1926 – 2002)

American mathematician who mainly worked in mathematical logic, and was one of the founders of model theory.
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July

John Leech (1926 – 1992)

English mathematician working in number theory, geometry and combinatorial group theory.

Discovered the $3$rd Hardy-Ramanujan number $\operatorname{Ta} \left({3}\right)$ in $1957$.

Best known for his discovery of the Leech lattice in $1965$.
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Edward McWilliam Patterson (1926 – 2013)

English mathematician whose research included the study of recurrent tensor fields, ring theory and Lie algebras.
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Hilary Whitehall Putnam (1926 – 2016)

American mathematician and philosopher, who has written significantly on various subjects, such as the philosophy of logic and language acquisition.
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August

Richard C. Jeffrey (1926 – 2002)

American mathematician who mainly worked in logic and probability theory.
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1927

Nesmith Cornett Ankeny (1927 – 1993)

American mathematician specialising in number theory.
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Robert Gardner Bartle (1927 – 2003)

American mathematician specializing in real analysis.

Best known for his text books.
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Reuben Hersh (b. 1927 )

American mathematician best known for his writings on the philosophy of mathematics.
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Richard S. Pierce (1927 – 1992)

American mathematician who mainly worked in abstract algebra.
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February

Masayoshi Nagata (1927 – 2008)

Japanese mathematician who worked mainly in the field of commutative algebra.
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John Lewis Selfridge (1927 – 2010)

American mathematician who contributed to the fields of analytic number theory, computational number theory and combinatorics.

Proved in $1962$ that $78 \ 557$ is a Sierpiński number of the second kind.

Conjectured (with Wacław Franciszek Sierpiński) that it is also the smallest. This still has not been proven (see Sierpiński Problem).
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March

Joseph Steven Madachy (1927 – 2014)

American research chemist, technical editor and recreational mathematician.
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April

Michel André Kervaire (1927 – 2007)

French mathematician who made significant contributions to topology and algebra.
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May

Serge Lang (1927 – 2005)

French-American mathematician known for his work in number theory, and for the mathematics textbooks he wrote.

Member of the Bourbaki group.
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June

Benjamin Franklin Logan (1927 – 2015)

American electrical engineer and bluegrass music fiddler.

Corresponded with Donald E. Knuth, with whom he exchanged insights.
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October

Friedrich Ernst Peter Hirzebruch (1927 – 2012)

German mathematician, working in the fields of topology, complex manifolds and algebraic geometry.
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December

Adrianus Johannes Wilhelmus Duijvestijn (1927 – 1998)

Dutch computer scientist and mathematician best known for finding the Smallest Perfect Square Dissection.
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1928

Wendell Helms Fleming (b. 1928 )

American mathematician specializing in geometrical analysis and stochastic differential equations.
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Harold Seymour Shapiro (b. 1928 )

American mathematician best known for inventing the Shapiro polynomials and for pioneering work on quadrature domains.
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Abner Shimony (1928 – 2015)

American physicist and philosopher of science specializing in quantum theory.
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January

Joseph Bernard Kruskal (b. 1928 )

Joseph Bernard Kruskal, Jr. is an American mathematician working in the fields of statistics, computer science and graph theory, among others.
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March

Ray Alden Kunze (1928 – 2014)

American mathematician whose research concerned the representation theory of groups and noncommutative harmonic analysis.
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Martin David Davis (b. 1928 )

American mathematician working mainly in the field of mathematical logic.
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Paulo Ribenboim (b. 1928 )

Brazilian-Canadian mathematician who specializes in number theory.
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Alexander Grothendieck (1928 – 2014)

Sometimes rendered Alexandre Grothendieck.

German-born mathematician of semi-Ukrainian ancestry who is usually credited with creating the modern field of algebraic geometry.

His collaborative seminar-driven approach had the result of making him one of the most influential thinkers of the 20th century.
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April

Thomas Andrew Lehrer (b. 1928 )

Tom Lehrer was a mathematics lecturer at the University of California, Santa Cruz.

Far better known for his brief but successful musical career.
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June

John Forbes Nash (1928 – 2015)

American mathematician who made fundamental contributions to game theory, differential geometry, and the study of partial differential equations
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Iain Thomas Arthur Carpenter Adamson (1928 – 2010)

Scottish mathematician best known for his work in field theory.
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Wolfgang Haken (b. 1928 )

German mathematician mainly involved in topology where the bulk of his work has been on 3-dimensional manifolds.

In 1976, along with Kenneth Ira Appel, proved the Four Color Theorem with the help of a computer.
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July

Jürgen Kurt Moser (1928 – 1999)

German mathematician mainly involved in dynamical systems.
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Louis Auslander (1928 – 1997)

Prolific American mathematician who worked in many fields, including Finsler geometry, geometry of solvmanifolds and nilmanifolds, locally affine spaces, many aspects of harmonic analysis, representation theory of solvable Lie groups, and multidimensional Fourier transforms and the design of signal sets for communications and radar.
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Harvey Alan Dubner (b. 1928 )

American engineer and mathematician specializing in the mathematics of casino games and finding large primes.

Invented the point-count method for gaining an advantage in blackjack.
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James Harold McKay (b. 1928 )

American mathematician best known for his work in group theory.
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August

Henry W. Gould (b. 1928 )

American mathematician whose research has been in combinatorial analysis, number theory, special functions of mathematical physics, and the history of mathematics and astronomy.
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September

Evelyn Martin Lansdowne Beale (1928 – 1985)

English applied mathematician and statistician who was one of the pioneers of mathematical programming.
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Donald G. Higman (1928 – 2006)

American mathematician noted for his discovery of the Higman-Sims Group, with Charles C. Sims.

His work contributed towards the discovery of several of the sporadic simple groups.
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Halsey Lawrence Royden (1928 – 1993)

American mathematician specialising in complex analysis, Riemann surfaces and differential geometry.
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October

Ian Grant Macdonald (b. 1928 )

English mathematician known for his contributions to symmetric functions, special functions, Lie algebra theory and other aspects of algebraic combinatorics.
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Donald Bruce Gillies (1928 – 1975)

Canadian mathematician and computer scientist.

In $1963$, discovered the $21$st, $22$nd and $23$rd Mersenne primes with the aid of the ILLIAC II computer. The largest of these ($2^{11 \ 213} - 1$) was reported in the Guinness Book of Records and immortalised on all mail sent from the postroom of the University of Illinois.
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Peter Naur (1928 – 2016)

Danish astronomer, computer scientist and empirical philosopher who was significantly involved in the development of ALGOL.

The metalanguage Backus-Naur Form was named after John Warner Backus (who invented it) and him (who refined it), but would rather it were called Backus Normal Form.
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1929

Hans Ivar Riesel (1929 – 2014)

Swedish mathematician who found the $18$th Mersenne prime $2^{3217} - 1$ in $1957$.

He held the record for the highest known prime from $1957$ to $1961$, when Alexander Hurwitz found the next two.
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Frank Tapson (b. 1929 )

English mathematician, teacher and game enthusiast who published much material useful for teaching.

Also the creator of several online educational resources.
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April

Michael Francis Atiyah (b. 1929 )

English mathematician specialising in geometry.
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August

Anthony James Merrill Spencer (1929 – 2008)

English mathematician working mainly in the field of material mechanics.
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October

Regina Iosifovna Tyshkevich (b. 1929 )

Регина Иосифовна Тышкевич is an expert in graph theory.

Her main scientific interests include intersection graphs, degree sequences, and the reconstruction conjecture.

Also known for co-inventing split graphs and for her contributions to line graphs of hypergraphs.
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1930

February

Erwin Engeler (b. 1930 )

Swiss mathematician whose main work has been in mathematical logic and computer science.
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March

Nobuo Yoneda (1930 – 1996)

Japanese mathematician and computer scientist who worked in category theory and homological algebra.
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May

Edsger Wybe Dijkstra (1930 – 2002)

Hugely influential Dutch pioneer of computer science.
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June

Edward John Lemmon (1930 – 1966)

Usually known as John Lemmon. Best known as a writer on logic, particularly modal logic.
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Robert John Aumann (b. 1930 )

German-born Israeli-American mathematician noted for his work on conflict and cooperation through game-theory analysis.
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Reinhold Remmert (b. 1930 )

German mathematician whose work has mainly been in developing the theory of complex spaces.
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July

Donald J. Newman (1930 – 2007)

American mathematician active in the fields of Complex Analysis, Number Theory and Approximation Theory.

Best known for his elementary proof of the Prime Number Theorem.
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August

James Raymond Munkres (b. 1930 )

American mathematician and author of Topology, one of the most popular undergraduate topology textbooks.
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Richard Merett Montague (1930 – 1971)

American mathematician and logician.

Proved that ZFC must contain infintely many axioms.
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October

Walter Feit (1930 – 2004)

Austrian-born American mathematician who worked in finite group theory and representation theory.
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John Rolfe Isbell (1930 – 2005)

American mathematician best known for his work in topology and category theory.

Also published under the pseudonyms John Rainwater, M.G. Stanley and H.C. Enos.
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November

Norman Woodason Johnson (b. 1930 )

American mathematician best known for enumerating all $92$ convex non-uniform polyhedra with regular faces.
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John David Brillhart (b. 1930 )

American mathematician known for his work in integer factorization, including the development of the continued fraction factorization method.

Has been a principal participant in the Cunningham project.
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