Shimizu Tatsujirō

Shimizu Tatsujirō ( Japanese 清水 辰 次郎 ; * April 7, 1897 in Tokyo , † November 8, 1992 in Uji ) was a Japanese mathematician .

Career

Shimizu graduated from Tokyo in 1924 and stayed there a few years later. In 1932 he became a professor at the Osaka Imperial University . He switched to a professorship at Kobe University in 1949 . Two years later he went to Osaka Prefectural University . From 1961 he was then professor at the Tokyo University of Natural Sciences . He remained mathematically active into old age.

The first works of Shimizu dealt with topics of function theory , in particular the theory of meromorphic functions. A form of the Nevanlinna characteristic introduced by him and Ahlfors is known as the Ahlfors-Shimizu characteristic. Shimizu later turned to applied mathematics, particularly differential equations and numerical mathematics .

Shizuo Kakutani is one of his students .

literature

• Hiroshi Sugiyama, A sketch of the life of Dr. Shimizu . Mathematica Japonica, Volume 40, Issue 1, pp. 1-15, 1994.

Web links

• Part of the above article by Sugiyama , photo
• Tatsujiro Shimizu in the Mathematics Genealogy Project

Individual evidence

1. ↑ 清水 辰 次郎 . In: デ ジ タ ル 版 日本人 名 大 辞典 + Plus at kotobank.jp. January 20, 2009, accessed March 14, 2012 (Japanese, online version by Nihon Jinmei Daijiten . Kodansha). 

Japanese name: As is common in Japan, the family name comes before the first name in this article . Thus Shimizu is the family name, Tatsujirō the first name.