"1927-01-19Z"^^ . "Donald Lyman Burkholder (January 19, 1927 - April 14, 2013) was an American mathematician known for his contributions to probability theory, particularly the theory of martingales. The Burkholder\u2013Davis\u2013Gundy inequality is co-named after him. Burkholder spent most of his professional career as a professor in the Department of Mathematics of the University of Illinois at Urbana-Champaign."@en . "2013-04-14Z"^^ . "1927Z"^^ . "2013Z"^^ . "Burkholder, Donald L."@en . "American mathematician" .