# Poincaré Conjecture

Poincaré Conjecture: Every simply connected, closed 3-manifold is homeomorphic to the 3-sphere. In a 1904 paper, the French mathematician Jules Henri Poincare stated that every closed simply connected 3-manifold is homeomorphic to the 3-sphere. Dr. Grigory Perelman of the Steklov Institute of Mathematics (part of the Russian Academy of Sciences in St. Petersburg) solved the 100-year-old Poincare conjecture. The ICM awarded Perelman the Field…