Mitio Nagumo

Mitio Nagumo
Born(1905-05-07)7 May 1905
Died6 February 1995(1995-02-06) (aged 89)
NationalityJapanese
Alma materUniversity of Tokyo
Known forNagumo theorem
Nagumo’s uniqueness theorem
Kolmogorov-Nagumo-de Finetti mean
Scientific career
FieldsMathematics
InstitutionsUniversity of Osaka
Doctoral advisorTakuji Yosie
Notable studentsJin Akiyama

Mitio (Michio) Nagumo (Japanese: 南雲 道夫; May 7, 1905 February 6, 1995) was a Japanese mathematician, who specialized in the theory of differential equations. He gave the first necessary and sufficient condition for positive invariance of closed sets under the flow induced by ordinary differential equations (Nagumo/Bony-Brezis theorem).