Nationality Japanese Education Kyoto University Known for Oka coherence theorem Fields Mathematician | Name Kiyoshi Oka Books Collected papers Role Mathematician | |
Born April 19, 1901
Osaka, Japan ( 1901-04-19 ) Institutions Kyoto Imperial University
Hiroshima University
Hokkaido University
Nara Women's University
Kyoto Sangyo University Alma mater Kyoto Imperial University Died March 1, 1978, Nara, Nara Prefecture, Japan Notable awards Asahi Prize (1953), Japan Academy Prize (1960), Order of Culture (1960) Similar People Henri Cartan, Reinhold Remmert, Hu Lancheng |
風蘭 2/3 Kiyoshi Oka
Kiyoshi Oka (岡 潔, Oka Kiyoshi, April 19, 1901 – March 1, 1978) was a Japanese mathematician who did fundamental work in the theory of several complex variables. He was born in Osaka. He went to Kyoto Imperial University in 1919, turning to mathematics in 1923 and graduating in 1924.
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He was in Paris for three years from 1929, returning to Hiroshima University. He published solutions to the first and second Cousin problems, and work on domains of holomorphy, in the period 1936–1940. These were later taken up by Henri Cartan and his school, playing a basic role in the development of sheaf theory. Oka continued to work in the field, and proved Oka's coherence theorem in 1950. Oka's lemma is also named after him.
He was professor at Nara Women's University from 1949 to retirement at 1964. He received many honours in Japan.