Jun-ichi Igusa (井草 凖一, Igusa Jun’ichi, 30 January 1924 – 24 November 2013) 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.[1]
Jun-ichi Igusa | |
|---|---|
| Born | 30 January 1924 Kiyosato village, Gunma Prefecture, Japan |
| Died | 24 November 2013 (aged 89) |
| Nationality | Japanese |
| Alma mater | Kyoto University |
| Known for | Igusa zeta-function |
| Scientific career | |
| Fields | Mathematics |
| Institutions | University of Tsukuba Harvard University Johns Hopkins University |
| Doctoral students | |
He was an invited speaker for the 1962 International Congress of Mathematicians in Stockholm.[2] He was awarded Japan's Order of the Sacred Treasure.[3] In 2012 he became a fellow of the American Mathematical Society.[4]
Life and career
editIgusa was born in Kiyosato village, Gunma Prefecture, Japan, on 30 January 1924.[5] He graduated from the University of Tokyo in 1945 and received his Ph.D. from Kyoto University in 1953, after which he became professor of mathematics at the University of Tsukuba. After a brief period spent at Harvard University, he took up a permanent position at Johns Hopkins University, in Baltimore. Igusa taught at Johns Hopkins from 1955 to 1993.[6] He joined the staff of the American Journal of Mathematics as an associate editor in 1964, and served as chief editor between 1978 and 1993.[7] Igusa died, aged 89, of a stroke at Holly Hill Nursing Home in Towson, Maryland, on 24 November 2013.[6]
He had three sons, Kiyoshi, Takeru and Mitsuru.[1] Takeru Igusa is a professor of civil engineering at Johns Hopkins University. Kiyoshi Igusa is a professor of mathematics at Brandeis University.
Publications
edit- Igusa, Jun-ichi (1972), Theta functions, Die Grundlehren der mathematischen Wissenschaften, vol. 194, Berlin, New York: Springer-Verlag, ISBN 978-3-540-05699-7, MR 0325625
- Igusa, Jun-ichi (1978), Forms of higher degree (PDF), Tata Institute of Fundamental Research Lectures on Mathematics and Physics, vol. 59, Bombay: Tata Institute of Fundamental Research, ISBN 978-0-387-08944-7, MR 0546292
- Igusa, Jun-ichi (2000), An introduction to the theory of local zeta functions, AMS/IP Studies in Advanced Mathematics, vol. 14, Providence, R.I.: American Mathematical Society, ISBN 978-0-8218-2015-5, MR 1743467
References
edit- ^ a b "Jun-ichi Igusa, noted mathematician and JHU researcher, dies at 89". Johns Hopkins University. Archived from the original on 3 December 2013. Retrieved 29 November 2013.
- ^ "International Mathematical Union (IMU)". www.mathunion.org. Archived from the original on 27 September 2011.
- ^ "Mathematician Receives Japan's Order of the Sacred Treasure". Johns Hopkins University. 5 January 2005. Archived from the original on 4 April 2005. Retrieved 17 October 2019.
- ^ List of Fellows of the American Mathematical Society, retrieved 2013-01-26.
- ^ Lo, Samuel E. (1971). Asian Who? in America. East-West Who. p. 109.
- ^ a b Kelly, Jacques (6 December 2013). "Jun-ichi Igusa". Baltimore Sun. Retrieved 17 October 2019.
- ^ "In Memoriam: Jun-Ichi Igusa 1924–2013". American Journal of Mathematics. 136 (1): iii. February 2014. doi:10.1353/ajm.2014.0000.
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