Russian American mathematician
Alexander Weinstein (21 January 1897 – 6 November 1979) was a mathematician who worked on boundary value problems in fluid dynamics .
Weinstein was born to Judel Jejb Weinstein and Praskovya Levkovich, his family was Jewish , and his father was a doctor .[ 1] [ 2] Astrakhan , but later decided to emigrate to Germany , there Weinstein completed his schooling, having studied first in Würzburg , then at the University of Göttingen during 1913/14.[ 3]
After his graduation, he left for Zürich and soon undertook research for Hermann Weyl and Rudolf Fueter and was awarded a doctorate in 1921 for his thesis on the tensor calculus and linear groups of matrices.[ 3] [ 4] Weyl suggested Weinstein to several prominent mathematicians, including Paul Sophus Epstein , who was then worked at the California Institute of Technology .[ 1] Leon Lichtenstein at the University of Leipzig in 1922.[ 1] Zürich and continued his research into hydrodynamics , he published two works on the matter.[ 5] [ 6] [ 7]
Weinstein was a target of xenophobia , so he struggled to find a "scientific position adequate to his abilities in Switzerland", as such Weyl recommended Weinstein for a Rockfeller Fellowship , with him being awarded it, and spent two years (1926/27) in Rome , where he worked with Tulio Levi-Civita .[ 1] [ 3] Levi-Civita , Weinstein published three more works before he returned to Zürich as a privatdocent in Weyl's chair, then in 1928 he was appointed to the Hamburg Technical University , he also joined the German Mathematical Society .[ 2] [ 4] [ 7] Hamburg , they did not have any children.[ 2]
By 1933, he was sought by Albert Einstein as a collaborator in Berlin , however after the electoral success of the Nazi Party , Weinstein, being of Jewish background, instead went to Sorbonne and the Collège de France in Paris , where he worked with Jacques Hadamard .[ 3] [ 4] England , at the University of Cambridge , and the University of London , before returning to Paris .[ 1] [ 3] [ 2] [ 4] Nazi invasion of France , Weinstein and his wife fled to Portugal with the hope they could seek refuge to the United States .[ 1]
They arrived in New York on 26 October 1940, and lived at 22 West 75th Street, for the next eight years Weinstein taught at a number of different places, and became a citizen in 1946.[ 1] classical analysis and fluid dynamics , he founded the Institute of Fluid Dynamics and Applied Mathematics (later renamed the Institute of Physical Science and Technology ) at Maryland in 1949.[ 1] [ 4] [ 3]
Weinstein's research covered numerous topics, he is famous for having solved Helmholtz's problem for jets , giving the first uniqueness and existence theorem for free jets in his papers from 1923 to 1929, and he examined many boundary problems , whilst giving hydrodynamic and electromagnetic applications.[ 2] [ 4] eigenvalues of plates and membranes, and he introduced a new branch of potential theory through his examination of singular partial differential equations .[ 2] [ 4]
Weinstein retired in 1967, yet continued research at the American University in Washington D.C. , he worked from 1968 to 1972 at Georgetown University .[ 1] [ 3] William Stenger , the book Methods of Intermediate problems for eigenvalues , and then in 1978, when Weinstein was eighty years old, Joe D Diaz made a collection of Weinstein's writings.[ 3] [ 2] surgical operation .[ 1] [ 3]
Publications
A selection of Alexander Weinstein's scientific contributions was edited by J. B. Díaz and published as:
Díaz, J. B., ed. (1978), Alexander Weinstein selecta Pitman , pp. XXI+629, ISBN 0-273-08411-9 MR 0518819 , Zbl 0383.01021
References
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