Arthur Geoffrey Walker FRS FRSE (17 July 1909 in Watford, Hertfordshire, England – 31 March 2001)[1][2] was a British mathematician and professor of the University of Sheffield who made important contributions to physical cosmology.
He was born in Watford on 17 July 1909 the son of Arthur John Walker (b.1879), a coach builder, and his wife, Eleanor Joanna Gosling.
[2] Walker attended Watford Grammar School for Boys and won a scholarship to Balliol College, Oxford, where he graduated with first class honours in Mathematics.
[1] Luther Pfahler Eisenhart's 1926 text, Riemannian Geometry, proved to a great influence on Walker, who referred to it as his "Bible" and cited it in many of his papers.
[2][3] In 1935, Walker and Robertson demonstrated that the isotropic and homogeneous cosmological models previously constructed by Georges Lemaître and Alexander Friedmann all shared the same general form, the Robertson-Walker metric.