Negativity of Perelman's Li-Yau-Hamilton type expression
arXiv:0810.0576
Abstract
Chau-Tam-Yu has proved the non-positivity of Perelman's new Li-Yau-Hamilton type expression on noncompact manifolds. In this article, we further prove that is negative if the Ricci flow is not end up with an Euclidean space.
4 pages