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Math

+ - Millenium Prize awarded - Poincaré conjecture->

Submitted by epee1221
epee1221 writes: The Clay Mathematics institute has announced its acceptance of Dr. Grigoriy Perelman's proof of the Poincaré conjecture and awarded the first Millenium 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 grdually 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.
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Millenium Prize awarded - Poincaré conjecture

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