A generalization of Hamilton's differential Harnack inequality for the Ricci flow
Abstract
Description
In [10], R. Hamilton established a differential Harnack inequality for solutions to the Ricci flow with nonnegative curvature operator. We show that this inequality holds under the weaker condition that M x R^2 has nonnegative isotropic curvature.
revised version, to appear in J. Diff. Geom
revised version, to appear in J. Diff. Geom