Kōsaku Yosida

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.

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.

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