# Mathematician:Edmund Georg Hermann Landau

## Contents

## Mathematician

German mathematician who worked in the fields of number theory and complex analysis.

Suffered, as did (and still do) so many others, at the hands of the Nazi regime.

What made this particularly poignant is that a considerable amount of his persecution was at the hands of one of his students, Oswald Teichmüller.

## Nationality

German

## History

- Born: 14 February 1877 in Berlin, Germany
- Died: 19 February 1938 in Berlin, Germany

## Theorems and Definitions

- Landau's Function
- Landau Prime Ideal Theorem
- Landau's Problems
- Landau's Symbol (Big O Notation)
- Landau-Kolmogorov Inequality (with Andrey Nikolaevich Kolmogorov)
- Landau-Ramanujan Constant (with Srīnivāsa Aiyangār Rāmānujan)
- Landau's Problem on the Dirichlet Eta Function
- Kusmin-Landau Inequality (with Rodion Osievich Kuzmin)

## Publications

- 1909:
*Handbuch der Lehre von der Verteilung der Primzahlen*(2 volumes) - 1927:
*Vorlesungen über Zahlentheorie*(Lectures on Number Theory)

## Sources

- John J. O'Connor and Edmund F. Robertson: "Edmund Georg Hermann Landau": MacTutor History of Mathematics archive

- 2008: David Joyner:
*Adventures in Group Theory*(2nd ed.) ... (previous) ... (next): Chapter $1$: Elementary, my dear Watson: $\S 1.2$: Elements, my dear Watson