William Prager
German-American mathematician
William Prager, Willy Prager, was a German-born American applied mathematician. In the field of mechanics he is well known for the Drucker–Prager yield criterion. Wikipedia
Born: May 23, 1903, Karlsruhe, Germany
Died: March 17, 1980 (age 76 years), Zürich, Switzerland
Academic advisors: Wilhelm Schlink and Emil Kammer
Awards: Timoshenko Medal (1966), Theodore von Karman Medal (1960), and Guggenheim Fellowship (1957)
Books