Alexander Weinstein

Alexander Weinstein ( born January 21, 1897 in Saratov, † January 6, 1979 in Washington, DC) was an American mathematician who dealt with mathematical problems of mechanics.

Weinstein initially studied to become an astronomer with the aim, then at the University of Würzburg and 1913/14, at the University of Göttingen in Astrakhan. In 1921 he received his doctorate at the ETH Zurich with Hermann Weyl. In 1922 he was an assistant at the University of Leipzig, taught at the University of Wales and was in 1926/27 at Tullio Levi -Civita at the University of Rome as a Rockefeller Fellow. In 1927 he was back in Zurich as an assistant to Weyl, 1928 at the University of Hamburg and in the same year at the University of Breslau. In 1933, he should work with Albert Einstein in Berlin, but this was prevented by the power of the National Socialists. As a Jew, he was forced to leave Germany and went to Paris in 1934 to the College de France, where he worked with Jacques Hadamard. In 1937 he received his doctorate there again. In 1940 he went to the USA where he was at various universities, but mainly at the University of Toronto. During World War II he was in the research group of George David Birkhoff at Harvard University. After all, he had eighteen years a research professor at the Institute for Fluid Dynamics and Applied Mathematics at the University of Maryland. In 1967, he went there to retire, but remained at Georgetown University scientifically active.

He dealt with boundary value problems of partial differential equations of hydrodynamics and electrodynamics, for example, he treated in the 1920s, the beam problem of hydrodynamics on strict way, developed a generalized theory of axisymmetric potentials and gave bounds for eigenvalues ​​of the vibrations of plates and membranes