Stefan Cohn-Vossen (28 May 1902 – 25 June 1936) was a mathematician, who was responsible for Cohn-Vossen's inequality and the Cohn-Vossen transformation is also named for him. He proved the first version of the splitting theorem.
|Died||June 25, 1936 (aged 34)|
|Alma mater||Wrocław University|
|Known for||Cohn-Vossen's inequality|
|Thesis||Singuläre Punkte reeller, schlichter Kurvenscharen, deren Differentialgleichung gegeben ist (1924)|
|Doctoral advisor||Adolf Kneser|
He was born in Breslau (then a city in the Kingdom of Prussia; 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.