Perelman (Grigori Perelman)

Grigori Perelman is a Russian mathematician renowned for solving the Poincaré Conjecture, a century-old problem in topology, which studies the properties of shapes and spaces. The conjecture concerns classifying three-dimensional spaces and was a major puzzle in mathematics. Perelman proved that every simply connected, closed 3-manifold is a 3-sphere, confirming a key part of geometric understanding. His work built upon Richard Hamilton’s Ricci flow approach, and his proof was verified globally. Perelman declined prestigious awards like the Fields Medal and the Clay Millennium Prize, emphasizing his focus on mathematical truth over recognition.