Mathematician:Leonard Jimmie Savage

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American mathematician who worked on metric and differential geometry, calculus of variations and statistics.




  • Born: 20 November 1917 in Detroit, Michigan, USA
  • Died: 1 November 1971 in New Haven, Connecticut, USA

Theorems and Definitions


  • 1941: The Application of Vectorial Methods to the Study of Distance Spaces
  • 1943: On the Crossing of Extremals at Focal Points
  • 1948: The Utility Analysis of Choices Involving Risk (with Milton Friedman)
  • 1949: Application of the Radon-Nikodym Theorem to the Theory of Sufficient Statistics (with Paul Halmos)
  • 1953: Three Short Papers on Game Theory that involve Chance and the Skill of the Players (Econometrica Vol. 21: 97 – 117), translations of:
    • 1953: Émile BorelThe Theory of Play and Integral Equations with Skew Symmetric Kernels (Econometrica Vol. 21: 97 – 100)
    • 1953: Émile BorelOn Games that Involve Chance and the Skill of the Players (Econometrica Vol. 21: 101 – 115)
    • 1953: Émile BorelOn Systems of Linear Forms of Skew Symmetric Determinant and the General Theory of Play (Econometrica Vol. 21: 116 – 117)

Also known as

Originally given the name Leonard Ogashevitz, but because of his mother's illness was given the name Jimmie by a nurse at the hospital. Consequently adopted the name.

His father changed his surname from Ogashevitz to Savage in $1920$. Leonard Ogashevitz adopted the name Leonard Jimmie Savage when involved in classified war-work.