Charles Sims (mathematician)

Charles Coffin Sims ( born 1938 ) is an American mathematician who deals with finite groups.

Sims received his doctorate in 1963 from Harvard University with John Griggs Thompson (enumeration of p- groups). He was a professor at Rutgers University, where he has been since 1965. 1982 to 1984 he was chairman of the mathematics department there. In 2007 he retired and lives in St. Petersburg ( Florida).

Sims is a pioneer in algorithmic group theory, where he among other things for the Schreier - Sims algorithm ( named after him and Otto Schreier ) from 1970 known. He discovered with Donald G. Higman the Higman Sims group, a sporadic group, and proved to he developed permutation software by explicit construction the existence of other sporadic groups, the Lyon group ( by Richard Lyons in 1970 suspected) and the O ' Nan- group ( by Michael O'Nan 1976 suspected), both of which are also sometimes named according to Sims. With Jeffrey Leon, he constructed the baby monster.

He is a Fellow of the American Mathematical Society.