Document Type

Article

Date

4-3-2007

Disciplines

Mathematics

Description/Abstract

We show that if a complete Riemannian manifold supports a vector field such that the Ricci tensor plus the Lie derivative of the metric with respect to the vector field has a positive lower bound, then the fundamental group is finite. In particular, it follows that complete shrinking Ricci solitons and complete smooth metric measure spaces with a positive lower bound on the Bakry-Emery tensor have finite fundamental group. The method of proof is to generalize arguments of Garcia-Rio and Fernandez-Lopez in the compact case.

Additional Information

This manuscript is from arXiv.org, for more information see http://arxiv.org/abs/0704.0317

Source

Harvested from arXiv.org

Included in

Mathematics Commons

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