中文

通过拓扑学得到平移解的指数定量界

微分几何 2019-01-15 v4

摘要

我们对第二基本形式范数有界的均值曲率流平移解,获得了其广义指数的定量估计。该估计涉及加权平方可积f-调和1-形式空间的维数。通过先前工作中发展的、适配于加权情形的Li-Tam理论,当超曲面包含于关于平移方向的上半空间中时,这给出了依超曲面端的数目的估计。当存在一点使得所有主曲率互不相同时,我们估计了稳定性算子的零度。这允许我们通过第二基本形式范数有界的平移解的拓扑,得到其稳定性指数的定量估计;这些平移解或是二维的,或(在更高维时)具有有限拓扑型且包含于上半空间中。

关键词

引用

@article{arxiv.1804.07709,
  title  = {Quantitative index bounds for translators via topology},
  author = {Debora Impera and Michele Rimoldi},
  journal= {arXiv preprint arXiv:1804.07709},
  year   = {2019}
}

备注

14 pages. Translators seem to support a weighted L^2 Sobolev inequality only in dimension greater than or equal to 3 and when the translator is contained in a upper halfspace with respect to the translating direction; see Appendix A. Statements of Theorem A, Theorem B, Corollary C and Theorem E fixed accordingly. Theorem D still holds unchanged. Final version: to appear on Math. Z