Kōsaku Yosida, Date of Birth, Place of Birth, Date of Death

Kōsaku Yosida

Japanese mathematician

Date of Birth: 07-Feb-1909

Place of Birth: Hiroshima, Hiroshima Prefecture, Japan

Date of Death: 20-Jun-1990

Profession: mathematician, university teacher

Nationality: Japan

Zodiac Sign: Aquarius

Kosaku Yosida (?? ??, Yosida Kosaku, 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 mathematics at the University of Tokyo, and held posts at Osaka and Nagoya Universities.
In 1955, Yosida returned to the University of Tokyo.