My father, Derek Goldrei, who has died unexpectedly on his 74th birthday, worked as a mathematician for the Open University and various Oxford University colleges for his entire career.
Derek was born in Hampstead, north London, to Irena (nee Satori) and Laurence Goldrei. Irena had fled Vienna aged 18 in 1938 after the Anschluss, finding refuge in London at the invitation of her future mother-in-law, Eva Goldrei. His father would later take over the family business Charles Goldrei, Foucard and Son, a bakery ingredients company.
