Kōsaku Yosida
Japanese mathematician
From Wikipedia, the free encyclopedia
Kōsaku Yosida (吉田 耕作, Yosida Kōsaku; 7 February 1909, Hiroshima – 20 June 1990) was a Japanese mathematician who worked in the field of functional analysis. He is known for the Hille-Yosida theorem concerning C0-semigroups. Yosida studied[1] mathematics at the University of Tokyo, and held posts at Osaka and Nagoya Universities. In 1955, Yosida returned to the University of Tokyo.
