Maths genius declines top prize Photos of the reclusive genius are rare Grigory Perelman, the Russian who seems to have solved one of the hardest problems in mathematics, has declined one of the discipline's top awards. Dr Perelman was to have been presented with the prestigious Fields Medal by King Juan Carlos of Spain, at a ceremony in Madrid on Tuesday. In 2002, the mathematician claimed to have solved a century-old problem called the Poincare Conjecture. So far, experts working to verify his proof have found no significant flaws. There had been considerable speculation that Grigory "Grisha" Perelman would...