Hiroshi Umemura (mathematician)

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梅村 浩 (Hiroshi Umemura)
Born1944
Nagoya, Aichi prefecture, Japan
DiedMarch 8, 2019
Alma mater Nagoya University
Scientific career
Fields Algebraic geometry
Differential equations
InstitutionsStrasbourg University
Nagoya University

Hiroshi Umemura was a Japanese mathematician and professor at Nagoya University in the field of algebraic geometry and differential equations.

Biography

Umemura was born in Nagoya in 1944. He graduated from Nagoya University in 1967. At the beginning of his career, Umemura studied the subgroups of the Cremona group. In the 1980s, while visiting the University of Strasbourg, he began studying Painlevé equations, particularly Galois theory. In 1996, Umemura wrote his first of multiple papers on Galois theory, which was influential in the community surrounding Painlevé equations in Japan. Umemura died on March 8, 2019. At the time, he had been working on an article titled Toward Quantization of Galois Theory with fellow mathematicians Akira Masuoka and Katsunori Saito. The article was published posthumously in 2020. [1] [2] [3] [4] [5] [6]

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References

  1. ↑ Mukai, Shigeru; Umemura, Hiroshi (1983), Minimal rational threefolds, Lecture Notes in Mathematics, Berlin, Heidelberg: Springer Berlin Heidelberg, pp. 490–518, doi:10.1007/bfb0099976, ISBN   978-3-540-12685-0 , retrieved 2022-02-24
  2. ↑ Umemura, Hiroshi (2007), "Resolution of algebraic equations by theta constants", Tata Lectures on Theta II, Boston, MA: Birkhäuser Boston, pp. 261–270, doi:10.1007/978-0-8176-4578-6_18, ISBN   978-0-8176-4569-4 , retrieved 2022-02-24
  3. ↑ Umemura, Hiroshi (1982). "On the maximal connected algebraic subgroups of the Cremona group I". Nagoya Mathematical Journal. 88: 213–246. doi: 10.1017/s0027763000020183 . ISSN   0027-7630.
  4. ↑ UMEMURA, Hiroshi (1988), "On the Irreducibility of the First Differential Equation of Painlevé", Algebraic Geometry and Commutative Algebra, Elsevier, pp. 771–789, doi:10.1016/b978-0-12-348032-3.50015-3, ISBN   9780123480323 , retrieved 2022-02-24
  5. ↑ Casale, Guy; Di Vizio, Lucia; Ramis, Jean-Pierre, eds. (2021-04-12). "Volume à la mémoire de Hiroshi Umemura: "Équations de Painlevé et théories de Galois différentielles"". Annales de la Faculté des sciences de Toulouse: Mathématiques. 29 (5): i–v. doi: 10.5802/afst.1654 . ISSN   2258-7519.
  6. ↑ Okamoto, Kazuo; Ohyama, Yousuke (2021-04-12). "Mathematical works of Hiroshi Umemura". Annales de la Faculté des sciences de Toulouse: Mathématiques. 29 (5): 1053–1062. doi: 10.5802/afst.1656 . ISSN   2258-7519.


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