William Karush (1 March 1917 – 22 February 1997) was an American professor of mathematics at California State University at Northridge and was a mathematician best known for his contribution to Karush–Kuhn–Tucker conditions. In his master's thesis he was the first to publish these necessary conditions for the inequality-constrained problem,^[1] although he became renowned after a seminal conference paper by Harold W. Kuhn and Albert W. Tucker.^[2] He also worked as a physicist for the Manhattan Project, although he signed the Szilárd petition and became a peace activist afterwards.^[3]

• Webster's New World Dictionary of Mathematics, MacMillan Reference Books, Revised edition (April 1989), ISBN 978-0-13-192667-7
• On the Maximum Transform and Semigroups of Transformations (1962), Richard Bellman, William Karush,
• The crescent dictionary of mathematics, general editor (1962) William Karush, Oscar Tarcov
• Isoperimetric problems & index theorems. (1942), William Karush, Thesis (Ph.D.) University of Chicago, department of mathematics.
• Minima of functions of several variables with inequalities as side conditions, William Karush. (1939), Thesis (M.S.) – University of Chicago, 1939.^[1]

• Karush–Kuhn–Tucker conditions
• Szilárd petition