四维余维一Ricci流与非负截面曲率
微分几何
2020-02-17 v3
摘要
我们给出了具有非负截面曲率的闭4-流形在通过Ricci流演化时失去该性质的首批例子。
引用
@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}
}
备注
LaTeX2e, 11 pages, 2 figures, final version. To appear in Comm. Anal. Geom