Gerald Walter Schwarz (born February 15, 1946, Portland, Oregon, United States) is an American mathematician and Professor Emeritus at Brandeis University.

In November 1939, Ernst, Elaine and Maurice arrived in the United States, eventually settling in Portland, Oregon.

He spent the next academic year at the Institute for Advanced Study in Princeton, New Jersey (1975–76), where he recognized that the solution of the homotopy/isotopy lifting problem requires algebraic groups.

The proof of the theorem appears in the paper Lifting smooth homotopies of orbit spaces [3] and led to a tenured position at Brandeis in 1978.

[6] In 2012, he became a member of the inaugural class of fellows of the American Mathematical Society which recognizes mathematicians who have made significant contributions to the field.