news.bbc.co.uk — Grigory Perelman, the Russian who seems to have solved one of the hardest problems in mathematics, has declined one of the top prizes in maths.In 2002, Perelman claimed to have solved a century-old problem called the Poincare Conjecture.
Aug 22, 2006 View in Crawl 4
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It's quiet in here... can you hear the echo?