Author
photo credits: Konrad Jacobs, Erlangen  CCBYSA2.0DE
Stephan CohnVossen
Russian mathematician
wd:Q68525
1902

1936
country of citizenship:
Weimar Republic, Germany, Soviet Union
educated at:
University of Wrocław
occupation:
mathematician
Stefan or Stephan CohnVossen (28 May 1902 – 25 June 1936) was a mathematician, who was responsible for
CohnVossen's inequality
and the CohnVossen transformation is also named for him.
He proved the first version of Splitting theorem.
He was also known for his collaboration with David Hilbert on the 1932 book Anschauliche Geometrie, translated into English as Geometry and the Imagination.He was born in Breslau (then a city in the German Empire; now Wrocław in Poland). He wrote a 1924 doctoral dissertation at the University of Breslau (now the University of Wrocław) under the supervision of Adolf Kneser. He became a professor at the University of Cologne in 1930.
He was barred from lecturing in 1933 under Nazi racial legislation, because he was Jewish. In 1934 he emigrated to the USSR, with some help from Herman Müntz. While there, he taught at Leningrad University. He died in Moscow from pneumonia.
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series
0works
1Geometry and the Imagination
boek van David Hilbert
wd:Q44275646
author:
David Hilbert, Stephan CohnVossen
1932 or 1952