Stephen Rallis

Stephen James Rallis (May 17, 1942 – April 17, 2012) was an American mathematician who worked on group representations, automorphic forms, the Siegel–Weil formula, and Langlands L-functions.

Rallis received a B.Sc. in 1964 from Harvard University, a Ph.D. in 1968 from the Massachusetts Institute of Technology, and spent 1968–1970 at the Institute for Advanced Study in Princeton. After two years at Stony Brook, two years at Universite de Strasbourg, and several visiting positions, he joined the faculty at Ohio State University in 1977 and stayed there for the rest of his life.

Rallis's ideas had signicant contribution to the theory of automorphic forms. His mathematical papers were characterized by several long term senior collaborators such as David Ginzburg, Stephen Kudla, Herve Jacquet, Ilya Piatetski-Shapiro, Gerard Schiffmann, David Soudry, etc., and he was just as prolific with his junior post-doctoral students.

In 1990, Rallis gave an invited address on his work "Poles of Standard L-functions" at the 1990 Quadrennial International Conference of Mathematicians in Kyoto.

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