Hiroaki Terao

Hiroaki Terao (寺尾 宏明, Hiroaki Terao, born August 13, 1951) is a Japanese mathematician, known as, with Peter Orlik and Louis Solomon, a pioneer of the theory of arrangements of hyperplanes. He was awarded a Mathematical Society of Japan Algebra Prize in 2010.

Hiroaki Terao
Born (1951-08-13) August 13, 1951
Tokyo, Japan
NationalityJapanese
Alma materUniversity of Tokyo
Kyoto University
Known forArrangement of hyperplanes
AwardsMSJ Algebra Prize (2010)
Scientific career
FieldsMathematics
InstitutionsInternational Christian University
University of Wisconsin–Madison
Tokyo Metropolitan University
Hokkaido University
Doctoral advisorKyoji Saito

Education

Terao started his studies at the University of Tokyo, where he earned in 1974 his bachelor's degree and in 1976 his master's degree. For his graduate studies he went to Kyoto University, where he earned in 1981 his Ph.D. degree, with a thesis written under the supervision of Kyoji Saito.

Career

He held teaching positions at International Christian University (1977–1991), University of Wisconsin–Madison (1990–1999), Tokyo Metropolitan University (1998–2006), and Hokkaido University (1996–1998, 2006–2015). He was dean of the school of science of Hokkaido University (2013–2015), after which he became vice president of Hokkaido University (2015–2017). He has been a professor emeritus at Hokkaido University since 2017. He is currently a guest professor at Tokyo Metropolitan University.

Research

In 1983, Terao asked whether the freeness of an arrangement is determined from its intersection lattice.[1] This problem is now known as the Terao conjecture, and is still open.

Books
  • Orlik, Peter; Terao, Hiroaki (1992). Arrangements of Hyperplanes. Grundlehren der mathematischen Wissenschaften. Berlin, Heidelberg: Springer. doi:10.1007/978-3-662-02772-1. ISBN 978-3-642-08137-8. ISSN 0072-7830. MR 1217488.
  • Orlik, Peter; Terao, Hiroaki (2007) [2001]. Arrangements and hypergeometric integrals. MSJ Memoirs. Vol. 9 (2nd ed.). Tokyo: Mathematical Society of Japan. ISBN 978-4-931469-10-5. MR 2325213.

References
  1. Hiroaki Terao, The exponents of a free hypersurface, Singularities, Part 2 (Arcata, Calif., 1981), 561–566, Proc. Sympos. Pure Math., 40, Amer. Math. Soc., Providence, RI, 1983.
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