J. A. Todd

John Arthur Todd (23 August 1908 - 22 December 1994) was a British geometer. He was born in Liverpool, and went to Trinity College of the University of Cambridge in 1925. He did research under H.F. Baker, and in 1931 took a position at the University of Manchester. He became a lecturer at Cambridge in 1937. He remained at Cambridge for the rest of his working life.

Related Topics:
23 August - 1908 - 22 December - 1994 - British - Liverpool - Trinity College - University of Cambridge - H.F. Baker - University of Manchester

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The Todd class in the theory of the higher-dimensional Riemann-Roch theorem is an example of a characteristic class (or, more accurately, a reciprocal of one) that was discovered by Todd in work published in 1937. It used the methods of the Italian school of algebraic geometry. The Todd-Coxeter process for coset enumeration is a major method of computational algebra, and dates from a collaboration with H.S.M. Coxeter in 1936.

Related Topics:
Todd class - Riemann-Roch theorem - Characteristic class - Italian school of algebraic geometry - Todd-Coxeter process - Coset enumeration - H.S.M. Coxeter

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