James “Jim” Simons, a renowned mathematician and pioneering investor who built a fortune on Wall Street and then became one of the nation's biggest philanthropists, has died at age 86.

The fellowships are part of the Simons Foundation’s efforts to advance the frontiers of research in mathematics, theoretical physics, and theoretical computer science James P. McIntyre Professor of ...

The fellowships are part of the Simons Foundation’s efforts to advance the frontiers of research in mathematics, theoretical physics, and theoretical computer science James P. McIntyre Professor of ...