# Poincare Conjecture The conjecture state that any 3D-manifold that is closed and simply-connected is homeomorphic to the $S^3$ i.e., the 3D-sphere which can be seen as gluing two 3d-balls along it's 2D-surface. It was stated by Henry Poincare in 1904 and proved in the early 2000 by Grigori Perelman. ## Created 2024-11-30 07:06