Donald Samuel Ornstein

Who is Donald Samuel Ornstein?

Donald Samuel Ornstein is an American mathematician working in the area of ergodic theory. He received a Ph.D. from the University of Chicago in 1957 under the guidance of Irving Kaplansky. During his career at Stanford University he supervised the Ph. D. thesis of twenty three students, including Dan Rudolph, Doug Lind, Bob Burton, Jeff Steif and David H. Bailey.

He is most famous for his work on the isomorphism of Bernoulli shifts for which he won the 1974 Bôcher Prize. He has been a member of the National Academy of Sciences since 1981. In 2012 he became a fellow of the American Mathematical Society.