Jacques Tits (1930–2021) was a Belgian-French mathematician renowned for his fundamental contributions to group theory and geometry. In particular, he introduced the concept of “buildings,” geometric structures that unify the study of groups. He also formulated the “Tits alternative,” which states that any finitely generated linear group is either virtually solvable or contains a free subgroup on two generators. Tits’s work profoundly influenced the classification of algebraic groups and the geometry of group actions. He received several prestigious honors, including the Wolf Prize in 1993 and, together with John G. Thompson, the Abel Prize in 2008. Tits spent much of his career at the Collège de France, and his ideas remain a cornerstone of modern algebraic and geometric research.
| Coauthor | Papers Together |
|---|---|
| Richard M. Weiss | 28 |
| François Bruhat | 13 |
| Armand Borel | 5 |
| F. Bruhat | 2 |
| Arjeh M. Cohen | 2 |
| Bernhard Mühlherr | 1 |
| Paul Lentoudis | 1 |
| Mikhail Kapranov | 1 |
| William Crawley-Boevey | 1 |
| Edoardo Vesentini | 1 |
| Mario Bonk | 1 |
| Friedrich Hirzebruch | 1 |
| Enrico Bombieri | 1 |
| 和也 加藤 | 1 |
| Franz Bingen | 1 |
| Aldo Andreotti | 1 |
| Walter Feit | 1 |
| Juha Heinonen | 1 |
| James Arthur | 1 |
| Andries E. Brouwer | 1 |
| K. Chandrasekharan | 1 |
| T. A. Springer | 1 |
| Harish-chandra Harish-Chandra | 1 |
| Jean-Pierre Serre | 1 |
| Michel Lazard | 1 |
| Mark Ronan | 1 |
| Gopal Prasad | 1 |
| Robert A. Liebler | 1 |
| William M. Kantor | 1 |
| Lucien Waelbroeck | 1 |
| 毅 斎藤 | 1 |
| Éric Vasserot | 1 |