Mojżesz David Kirszbraun
Encyclopedia
Mojżesz David Kirszbraun (1903 or 1904–1942) — Polish mathematician, mostly known for his theorem
on extensions of Lipschitz maps.
This theorem appears in his master's thesis, defended in Warsaw in 1930.
He finished school in 1922.
Together with his classmate, Adolf Lindenbaum
he goes to Warsaw University.
After finishing study, he works as an actuary in an insurance company.
He died in a ghetto in 1942.
Kirszbraun theorem
In mathematics, specifically real analysis and functional analysis, the Kirszbraun theorem states that if U is a subset of some Hilbert space H1, and H2 is another Hilbert space, and...
on extensions of Lipschitz maps.
This theorem appears in his master's thesis, defended in Warsaw in 1930.
He finished school in 1922.
Together with his classmate, Adolf Lindenbaum
Adolf Lindenbaum
Adolf Lindenbaum , was a Polish logician and mathematician.He was a student of Wacław Sierpiński, became a distinguished author of works on set theory and had served as an Assistant Professor at Warsaw University...
he goes to Warsaw University.
After finishing study, he works as an actuary in an insurance company.
He died in a ghetto in 1942.
External links
- An entry about Kirszbraun written by Edward MarczewskiEdward MarczewskiEdward Marczewski was a Polish mathematician. His surname until 1940 was Szpilrajn.Marczewski was a member of the Warsaw School of Mathematics...
, Polski słownik biograficzny, Tom XII, p. 486