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Photo of Shigefumi Mori

Photo: 大臣官房人事課 / CC BY 4.0 (source: Wikimedia Commons)

Shigefumi Mori

森重文 / もり しげふみ

Fields Medal-winning mathematician specializing in algebraic geometry

February 23, 1951 (age 75) ・ Nagoya, Aichi Prefecture, Japan

  • From Aichi Prefecture
  • Mathematician
  • Professor

My Take

Shigefumi Mori is the kind of mathematician who makes you feel like the universe has a secret filing system that most of us will never get clearance to see. Born in Nagoya in 1951, he went on to Kyoto University and then did something that genuinely stunned the math world: he cracked open the classification of three-dimensional algebraic varieties, a problem that experts thought was essentially untouchable. The approach — now called Mori theory — was so original it felt like he had invented a new language just to describe something nobody else could even point at. The Fields Medal in 1990 was the obvious result, and winning the Cole Prize in Algebra the same year just underlined how thoroughly he had reshaped the field. He operates in a realm so abstract that explaining his work to a non-mathematician is almost a philosophical exercise, but that's exactly what makes him fascinating to think about.

Overview

Shigefumi Mori is a Japanese mathematician born on February 23, 1951, in Nagoya, Aichi Prefecture. He studied at Tokai Junior and Senior High School before graduating from Kyoto University. In 1990 he received the Fields Medal and the Frank Nelson Cole Prize in Algebra, and was also designated a Person of Cultural Merit by the Japanese government that same year.

1. Profile

Name (English)
Shigefumi Mori
Name (Japanese)
森重文
Reading
もり しげふみ
Born
February 23, 1951 (age 75)
Zodiac / Chinese zodiac
Pisces / Rabbit (卯)
Origin
Nagoya, Aichi Prefecture, Japan
Occupation
Mathematician / Professor

2. Background

High school
Tokai Junior and Senior High School
University
Kyoto University

Awards & achievements

  • 1990 — Fields Medal
  • 1990 — Frank Nelson Cole Prize in Algebra
  • 1990 — Person of Cultural Merit (Japan)

4. Personality

Motto

Private

Frequently asked questions

When was Shigefumi Mori born?

Born February 23, 1951 (age 75).

Where is Shigefumi Mori from?

Shigefumi Mori is from Nagoya, Aichi Prefecture, Japan.

What does Shigefumi Mori do?

Shigefumi Mori works as Mathematician, Professor.

Mathematician — see all → · Professor — see all → · More people from Japan →

7. About this entry

Tags

  • From Aichi Prefecture
  • Mathematician
  • Professor
Last updated
2026-06-02

Facts are limited to publicly available information up to 2024; non-public or unconfirmed items are omitted. English text is machine-assisted (facts translated by Sonnet, "My Take" written by Opus 4.8). The Japanese page is the source of record.