中文

带紧致边界的完备非紧度量测度空间上非线性方程的梯度估计

微分几何 2024-08-16 v3 偏微分方程分析

摘要

本文中,我们首先研究带边界的度量测度空间 (M,g,eξdvg)(M,g,e^{-\xi}\mathrm{d} v_g) 上如下方程正解的梯度估计 \begin{equation*} \Delta_\xi(u)-\partial_t u- q u =A(u),t\in (-\infty,\infty) \end{equation*} 其中 Δξ=Δ+,ξ \Delta_\xi=\Delta +\left \langle \nabla\cdot , \nabla \xi\right \rangle 。对该方程,我们导出 Li-Yau 型梯度估计与 Hamilton 型梯度估计。其次,我们在带边界的完备非紧度量测度空间 (M,g,eξdvg)(M,g,e^{-\xi}\mathrm{d} v_g) 上获得如下椭圆型方程正解的梯度估计 \begin{equation} \Delta_\xi(u)- q u =A(u)\end{equation}。

关键词

引用

@article{arxiv.2209.12600,
  title  = {Gradient estimates of nonlinear equation on complete noncompact metric measure space with compact boundary},
  author = {Xiangzhi Cao},
  journal= {arXiv preprint arXiv:2209.12600},
  year   = {2024}
}

备注

The main result of this paper, we think, is not worth publishing, since the condition is too strong and not natural. This paper is needed to improved in the future