Takeo Nakasawa

Takeo Nakasawa
Born	February 5, 1913 Koichi prefecture, Japan
Died	June 20, 1946 (aged 33) Khabarovsk, Soviet Union
Nationality	Japanese
Occupation	Mathematician
Known for	Inventor of the theory of matroids

Takeo Nakasawa (February 5, 1913, Koichi prefecture, Japan – June 20, 1946, Khabarovsk, Soviet Union) was a Japanese mathematician who independently invented the theory of matroids, though his work was forgotten for many years.

References

• Nishimura, Hirokazu; Kuroda, Susumu, eds. (2009), A lost mathematician, Takeo Nakasawa. The forgotten father of matroid theory, Basel: Birkhäuser Verlag, ISBN 978-3-7643-8572-9, MR 2516551