He came up with an innovative equation called the Ricci flow that helped mathematicians explore fundamental questions that were once out of reach. By Siobhan Roberts Richard Hamilton, an inventive ...
The main results in this paper are: (1) Ricci pinched stable Riemannian metrices can be deformed to Einstein metrics through the Ricci flow of R. Hamilton; (2) (suitably) negatively pinched Riemannian ...
In this short paper, we prove a Hitchin-Thorpe type inequality for closed 4-manifolds with non-positive Yamabe invariant and admitting long time solutions of the normalized Ricci flow equation with ...
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