thumb|Kōsaku Yosida.

was a Japanese mathematician who worked in the field of functional analysis. He is known for the Hille-Yosida theorem concerning C<sub>0</sub>-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.

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.)
  • Photo
  • Kosaku Yosida / School of Mathematics and Statistics University of St Andrews, Scotland
  • 94. Normed Rings and Spectral Theorems, II. By Kôsaku YOSIDA. Mathematical Inlstitute, Nagoya Imperial University. (Comm. by T.TAKAGMI, M.I.A. Oct.12,1943.)
  • Kosaku Yosida (1909 - 1990) - Biography - MacTutor