Kōsaku Yosida

Kōsaku Yoshida.

Kōsaku Yoshida (吉田 耕作, Yoshida 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.

See also

• Einar Carl Hille
• Functional analysis

References

• Kôsaku Yosida: Functional analysis. Grundlehren der mathematischen Wissenschaften 123, Springer-Verlag, 1971 (3rd ed.), 1974 (4th ed.), 1978 (5th ed.), 1980 (6th ed.)

External links

• Photo