## Millennium Prize Awarded For Perelman's Poincaré Proof 117

epee1221 writes

*"The Clay Mathematics Institute has announced its acceptance of Dr. Grigori Perelman's proof of the Poincaré conjecture and awarded the first Millennium Prize. Poincaré questioned whether there exists a method for determining whether a three-dimensional manifold is a spherical: is there a 3-manifold not homologous to the 3-sphere in which any loop can be gradually shrunk to a single point? The Poincaré conjecture is that there is no such 3-manifold, i.e. any boundless 3-manifold in which the condition holds is homeomorphic to the 3-sphere. A sketch of the proof using language intended for the lay reader is available at Wikipedia."*
## Re:What does he win? (Score:4, Insightful)

## English Please (Score:4, Insightful)

Could someone give us non-math geeks an explaination of this that does not include the following words: manifold homologous homeomorphic?

i'll read the wiki page too, but i'm hoping someone here will take a crack at explaining in it plain English.

Also: What does this mean? What are the applications? Not that it has to have any to be interesting.

## Re:I'm amazed. (Score:3, Insightful)

## Re:So will he accept? (Score:5, Insightful)

Has anyone had a hard answer as to why he turned down the prizes and medals?

What his friends have said is he believes actually proving it is reward enough. It's like being the first person to land on the moon, and someone gives you a "you landed on the moon" prize.

Still, a million dollars is something that can give you a lot of freedom. Turning it down is something that he might regret later.

## Re:So will he accept? (Score:1, Insightful)

He does not want to be defended. As far as I read the controversy, he does not want to

fightat all, because he (quite rightfully, imO) thinks that science should not be fought over.Criticism is useful. Politics (Yau, you asshole!) is not.

## Re:So will he accept? (Score:5, Insightful)

recognitionfor solving the problem. This was more important than the fields medal! What he got instead, was Yau and his cohorts claiming to have "really solved it." In Perelman's mind, political play such as this has no place in mathematics! Worse, his peers were not standing up to a) condemn this behaviour, and b) defend his paper. I think an important missing piece was that Perelman had not been officially recognized as having solved the Poincare conjecture. Now that this had been rectified, perhaps the world will be in enough order for him to rejoin it.