William A. Stein

William Arthur Stein (born February 21, 1974, in Santa Barbara, California) is a software developer and previously a professor of mathematics at the University of Washington.

Stein received his PhD in 2000, from the University of California, Berkeley, for his dissertation ‘Explicit Approaches to Modular Abelian Varieties’, supervised by Hendrik W. Lenstra.

He is the lead developer of SageMath and founder of CoCalc. Stein does computational and theoretical research into the problem of computing with modular forms and the Birch and Swinnerton-Dyer conjecture. He is considered "a leading expert in the field of computational arithmetic".

Stein was the 2013 recipient of the Richard Dimick Jenks Memorial Prize Award, presented by SIGSAM, a special interest group of the Association for Computing Machinery.

Publications