Marion Scheepers is a mathematician, currently on the faculty of the Department of Mathematics of Boise State University in Boise, Idaho, where he is a distinguished professor. His research interests cover set theory and its relatives, game theory, cryptology, elementary number theory and algorithmic phenomena in biology. He was born in December 1957, in Thabazimbi, South Africa. He completed his Ph.D. thesis entitled “The Meager-Nowhere Dense Game” at the University of Kansas under the supervision of Fred Galvin.
He is particularly known for his work on selection principles and on infinite topological and set-theoretic games. He introduced themes that are common to many selection principles and is responsible for the Scheepers diagram.