Abbas Bahri
Tunisian mathematician
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Abbas Bahri (1 January 1955 – 10 January 2016) was a Tunisian mathematician.[1] He was the winner of the Fermat Prize and the Langevin Prize in mathematics.[1] He was a professor of mathematics at Rutgers University.
Abbas Bahri | |
|---|---|
| Born | 1 January 1955 |
| Died | 10 January 2016 (aged 61) |
| Alma mater | Pierre-and-Marie-Curie University |
| Occupations | Mathematician, Professor at Rutgers University |
He mainly studied the calculus of variations, partial differential equations, and differential geometry. He introduced the method of the critical points at infinity, which is a fundamental step in the calculus of variations.
Biography
Bahri received his secondary education in Tunisia and higher education in France. He attended the École Normale Superieure in Paris[1] in 1974, the first Tunisian to do so.
In 1981, he completed his PhD from Pierre-and-Marie-Curie University.[1] His dissertation advisor was the French mathematician Haïm Brezis.[2] Afterwards, he was a visiting scientist at the University of Chicago.
In October 1981, Bahri became a lecturer in mathematics at the University of Tunis. He taught as a lecturer at the École Polytechnique from 1984 to 1993.[3] In 1988, he became a tenured professor at Rutgers University.[4] At Rutgers, he was director of the Center for Nonlinear Analysis from 1988 to 2002.
Personal life
He married Diana Nunziante on 20 June 1991.[5] His wife is from Italy and they had four children.[1] On 10 January 2016, he died following a long illness at the age of 61.[6]
Awards
In 1989, Bahri won the Fermat Prize for Mathematics, jointly with Kenneth Alan Ribet, for his introduction of new methods in the calculus of variations.
Works
- Pseudo-orbits of contact forms (1988)
- Critical Points at Infinity in Some Variational Problems (1989)
- Classical and Quantic Periodic Motions of Multiply Polarized Spin-Particles (1998)
- Flow lines and algebraic invariants in contact form geometry (2003)
- Recent progress in conformal geometry with Yongzhong Xu (2007)
Selected publications
- Bahri, Abbas (August 2009). "Variations at infinity in contact form geometry". Journal of Fixed Point Theory & Its Applications. 5 (2): 265–289. doi:10.1007/s11784-009-0102-0. S2CID 120456000.
- Bahri, Abbas; Taimonov, Iskander A. (July 1998). "Periodic Orbits in Magnetic Fields and Ricci Curvature of Lagrangian Systems" (PDF). Transactions of the American Mathematical Society. 350 (7): 2697–2717. arXiv:dg-ga/9511016. doi:10.1090/s0002-9947-98-02108-4. S2CID 15064503. Retrieved 11 July 2014.