Lev M. Bregman

Lev M. Bregman (Russian: Лев Брэгман; 1941–2023) was a Soviet and Israeli mathematician, most known for the Bregman divergence named after him.

Lev M. Bregman
Лев Брэгман
Born	January 31, 1941 Leningrad
Died	February 24, 2023 Israel
Education	Leningrad University
Occupation	Mathematician
Known for	Bregman divergence, Bregman's Theorem

Bregman received his M. Sc. in mathematics in 1963 at Leningrad University and his Ph.D. in mathematics in 1966 at the same institution, under the direction of his advisor Prof. J. V. Romanovsky, for his thesis about relaxation methods for finding a common point of convex sets, which led to one of his most well-known publications.^[1]

Bregman's Theorem, proving a 1963 conjecture of Henryk Minc, gives an upper bound on the permanent of a 0-1 matrix.

Bregman was employed at the Institute for Industrial Mathematics, Beer-Sheva, Israel, after having spent one year at Ben-Gurion University of the Negev, Beer-Sheva. Formerly, from 1966 through 1991, he was senior researcher at the Leningrad University.

Bregman is author of several textbooks and dozens of publications in international journals.