Education
He mainly studied the calculus of variations, partial differential equations, and differential geometry. He attended the École Normale Superieure in Paris in 1974, the first Tunisian to do southern In 1981, he completed his Doctor of Philosophy from Pierre-and-Marie-Curie University.
Career
He was a professor of mathematics at Rutgers University. He introduced the method of the critical points at infinity, which is a fundamental step in the calculus of variations. Bahri received his secondary education in Tunisia and higher education in France.
His dissertation advisor was the French mathematician Haïm Brezis.
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. In 1988, he became a tenured professor at Rutgers University.
At Rutgers, he was director of the Center for Nonlinear Analysis from 1988 to 2002.
Personal life
On 10 January 2016, he died following a long illness at the age of 61.