Poincaré conjecture
In mathematics, the Poincaré conjecture (/pwɛn.kɑːˈreɪ/ pwen-kar-AY; [pwɛ̃kaʁe]) is a theorem about the characterization of the 3-sphere, which is the hypersphere that bounds the unit ball in four-dim...
Poincaré conjecture - Wikipedia
The Poincaré Conjecture - YouTube
Mar 2, 2007 ... Explantion of the Poincaré Conjecture by standup mathematician Simon Pampena - ABC TV science program Catalyst For more information on ...
Generalized Poincaré conjecture
In the mathematical area of topology, the term Generalized Poincaré conjecture refers to a statement that a manifold which is a homotopy sphere 'is' a sphere. More precisely, one fixes a category of m...
Generalized Poincaré conjecture - Wikipedia
Ricci flow
In differential geometry, the Ricci flow (/ˈriːtʃi/) is an intrinsic geometric flow. It is a process that deforms the metric of a Riemannian manifold in a way formally analogous to the diffusion of he...
Ricci flow - Wikipedia