Kosaku Yosida
Encyclopedia
was a Japanese mathematician
who worked in the field of functional analysis
. He is known for the Hille-Yosida theorem concerning C0-semigroups
.
Mathematician
A mathematician is a person whose primary area of study is the field of mathematics. Mathematicians are concerned with quantity, structure, space, and change....
who worked in the field of functional analysis
Functional analysis
Functional analysis is a branch of mathematical analysis, the core of which is formed by the study of vector spaces endowed with some kind of limit-related structure and the linear operators acting upon these spaces and respecting these structures in a suitable sense...
. He is known for the Hille-Yosida theorem concerning C0-semigroups
C0-semigroup
In mathematics, a C0-semigroup, also known as a strongly continuous one-parameter semigroup, is a generalization of the exponential function...
.