Poincaré conjecture
English
editEtymology
editOriginally conjectured by Henri Poincaré.
Proper noun
editthe Poincaré conjecture
- The theorem that the only simply connected, closed 3-dimensional manifold is a sphere.
Usage notes
edit- This is still (2008) known as the Poincaré conjecture but is now a theorem rather than a conjecture.