Known for

Riemannian geometry and geometric topology

Notable awards

Fields Medal (2006), declined

Millennium Prize (2010), declined

Sir John Ball, president of the International Mathematical Union, approached Perelman in Saint Petersburg in June 2006 to persuade him to accept the prize. After 10 hours of persuasion over two days, he gave up. Two weeks later, Perelman summed up the conversation as: “He proposed to me three alternatives: accept and come; accept and don’t come, and we will send you the medal later; third, I don’t accept the prize. From the very beginning, I told him I have chosen the third one… [the prize] was completely irrelevant for me. **Everybody understood that if the proof is correct then no other recognition is needed.**”

— Wikipedia on Grigori Perelman

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2010.03.24 Wednesday