Hyman Bass is an American mathematician, known for work in algebra and in mathematics education. From 1959 to 1998 he was Professor in the Mathematics Department at Columbia University. He is currently the Samuel Eilenberg Distinguished University Professor of Mathematics and Professor of Mathematics Education at the University of Michigan.
Hyman Bass
Samuel Eilenberg was a Polish-American mathematician who co-founded category theory and homological algebra.
Samuel Eilenberg (1970)
Saunders Mac Lane and Eilenberg at a conference in July 1992