Jun-Ichi Igusa

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Jun-Ichi Igusa
Born (1924-01-30)30 January 1924
Died 25 November 2013(2013-11-25) (aged 89)
Nationality Japanese
Fields Mathematics
Institutions Johns Hopkins University
Alma mater Kyoto University
Doctoral students Hiroshi Gunji
Donald McQuillan
Tetsuji Shioda
Known for Igusa zeta-function

Jun-Ichi Igusa (井草 準一 Igusa Jun’ichi?, 30 January 1924 − 25 November 2013)[1] was was a Japanese mathematician who for over three decades was on the faculty at Johns Hopkins University. He is known for his contributions to algebraic geometry and number theory. The Igusa zeta-function, the Igusa quartic, Igusa subgroups, Igusa curves, and Igusa varieties are named after him.[2]

He was an invited speaker for the 1962 ICM in Stockholm.[3] He was awarded Japan's Order of the Sacred Treasure. In 2012 he became a fellow of the American Mathematical Society.[4]

He has three sons, Kiyoshi, Takeru and Mitsuru.[5] Takeru Igusa is a professor of civil engineering at Johns Hopkins University. Kiyoshi Igusa is a professor of mathematics at Brandeis University.



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