## Godfrey Hardy

educator
mathematician
author

February 7, 1877
(age 70)
Cranleigh, Surrey, United Kingdom

Hardy started his career, lecturing in mathematics at Trinity College from 1906 to 1919. In 1912 Hardy published, with John E. Littlewood, the first of a series of papers that contributed fundamentally to many realms in mathematics, including the theory of Diophantine analysis, divergent series summation, Fourier series, the Riemann zeta function, and the distribution of primes. The collaboration between Hardy and Littlewood is one of the most celebrated in 20th-century mathematics.
Besides Littlewood, Hardy’s other important collaboration was with Srinivasa Ramanujan, a poor self-taught Indian clerk whom Hardy immediately recognized as a mathematical genius. Hardy arranged for Ramanujan to be brought to Cambridge in 1914, filled in the gaps in his mathematical education by private tutoring, and coauthored several papers with him before Ramanujan returned to India in 1919.
In 1919 Hardy left Cambridge to take the Savilian Chair of Geometry at Oxford in the aftermath of the Bertrand Russell affair during World War I. In 1928–29 he was a visiting professor at Princeton, exchanging places with Oswald Veblen. He returned to Cambridge in 1931 as Sadleirian Professor of Pure Mathematics and remained there until his death.