Mojżesz David Kirszbraun
Mojżesz David Kirszbraun (1903 or 1904–1942) was a Polish mathematician, mostly known for the Kirszbraun theorem on extensions of Lipschitz maps. This theorem appears in his master's thesis, defended in Warsaw in 1930.
Kirszbraun finished school in 1922. Together with his classmate, Adolf Lindenbaum he continued his studies in Warsaw University. Later, he worked as an actuary in an insurance company. He died in a ghetto in 1942.
Publications
- Kirzbraun, M.D. (1934). "Ueber die zusammenziehende und Lipschitzsche Transformationen". Fund. Math. 22: 77–108.
References
- An entry about Kirszbraun written by Edward Marczewski, Polski słownik biograficzny, Tom XII, p. 486
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