Four-dimensional cohomogeneity one Ricci flow and nonnegative sectional curvature
Differential Geometry
2020-02-17 v3
Abstract
We exhibit the first examples of closed 4-manifolds with nonnegative sectional curvature that lose this property when evolved via Ricci flow.
Keywords
Cite
@article{arxiv.1606.00778,
title = {Four-dimensional cohomogeneity one Ricci flow and nonnegative sectional curvature},
author = {Renato G. Bettiol and Anusha M. Krishnan},
journal= {arXiv preprint arXiv:1606.00778},
year = {2020}
}
Comments
LaTeX2e, 11 pages, 2 figures, final version. To appear in Comm. Anal. Geom