Sir Roger Penrose , OM , FRS ( born 8 August 1931 ) is an English mathematical physicist and Emeritus Rouse Ball Professor of Mathematics at the Mathematical Institute , University of Oxford and Emeritus Fellow of Wadham College . Sir Roger Penrose OM FRS ( born 8 August 1931 ) is an English mathematical physicist and Emeritus Rouse Ball Professor of Mathematics at the Mathematical Institute , University of Oxford and Emeritus Fellow of Wadham College .