Jun-Ichi Igusa Scientist

Jun-Ichi Igusa (井草準一, Igusa Jun’ichi, 30 January 1924 − 25 November 2013) was a Japanese professor emeritus at Johns Hopkins University, known for his contributions to algebraic geometry and number theory. Igusa zeta-function, the Igusa quartic, Igusa subgroups, Igusa curves and Igusa varieties were named after him.He was an invited speaker for the 1962 ICM in Stockholm. He was awarded Japan's Order of the Sacred Treasure. In 2012 he became a fellow of the American Mathematical Society.He has three sons, Kiyoshi, Takeru and Mitsuru. Takeru Igusa is a professor of civil engineering at Johns Hopkins University. Kiyoshi Igusa is a professor of mathematics at Brandeis University.