# Mathematician:Leonard Jimmie Savage

## Mathematician

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

American

## History

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

## Publications

• 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.