Remarks on non-compact gradient Ricci solitons

Abstract

In this paper we show how techniques coming from stochastic analysis, such as stochastic completeness (in the form of the weak maximum principle at infinity), parabolicity and $L^p$-Liouville type results for the weighted Laplacian associated to the potential may be used to obtain triviality, rigidity results, and scalar curvature estimates for gradient Ricci solitons under $L^p$ conditions on the relevant quantities.

The main changes over the previous version are that Theorem 2 has been improved by removing the pointwise growth assumption on $|\nabla f|$ in the case $p=1$, and that in Theorem 3, a shrinking gradient Ricci soliton is shown to be isometric to ${\mathbb{R}}^m$ in the endpoint case $S_{\ast }=0$

References in corpus (1)

• Rigidity of gradient Ricci Solitons