According to BrandeisNOW, Ira Gessel has been named the fourth Theodore W. and Evelyn G. Berenson Professor of Mathematics. A 2013 fellow of the American Mathematical Society, Gessel does research in the area of combinatorics, the science of counting finite structures.

“It is a great honor to be awarded the Berenson Chair,” Gessel says. “The mathematics department has been a wonderful place to teach and do research, and I look forward to continuing my work here for years to come.”