Mathematician:Alexander Markowich Ostrowski

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Contributed towards the fields of determinants, linear algebra, algebraic equations, multivariate algebra, formal algebra, number theory, geometry, topology, convergence, theory of real functions, differential equations, differential transformations, theory of complex functions, conformal mappings, numerical analysis and others.




  • Born: 25 September 1893 in Kiev, Ukraine (then part of the Russian Empire)
  • Died: 20 November 1986 in Montagnola, Lugano, Switzerland

Theorems and Conjectures

Results named for Alexander Markowich Ostrowski can be found here.


  • 1916: Über einige Lösungen der Funktionalgleichung $\phi \left({x}\right) \cdot \phi \left({y}\right) = \phi \left({x y}\right)$ (Acta Math. Vol. 41, no. 1: pp. 271 – 284)
  • 1922: Bemerkungen zur Theorie der diophantischen Approximationen (Abh. Math. Semin. Univ. Hambg. Vol. 1: pp. 77 – 98)
  • 1922: Zu meiner Note: "Bemerkungen zur Theorie der Diophantischen Approximationen" im l.Heft dieses Bandes (Abh. Math. Semin. Univ. Hambg. Vol. 1: pp. 249 – 250)

Also known as

Full name in Russian: Алекса́ндр Ма́ркович Остро́вский.