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Poincaré conjecture
The Poincaré conjecture states, that every simply connected, closed 3-manifold is homeomorphic to the 3-sphere.
Additional information
In 2003, the Russian mathematician Grigori Perelman provided proof of the conjecture.
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The Poincaré conjecture states, that every simply connected, closed 3-manifold is homeomorphic to the 3-sphere.
In 2003, the Russian mathematician Grigori Perelman provided proof of the conjecture.