English

Gradient estimates for the porous medium type equations and fast diffusion type equations on complete noncompact metric measure space with compact boundary

Differential Geometry 2024-08-16 v2 Analysis of PDEs

Abstract

In the paper, we derive Li-Yau gradient estimates and Souplet Zhang type estimates of the following equation \begin{equation*} \begin{split} u_t= \Delta_\xi p+\lambda u+A(u) , \end{split} \end{equation*} on complete noncompact metric measure space (M,g,eξdvg) (M, g,e^{-\xi}dv_g) with compact boundary. We will also give the local gradient estimates of the equation \begin{equation*} \Delta_\xi(u^p)+\lambda u+A(u)=0, \end{equation*} on complete noncompact manifold with compact boundary.

Keywords

Cite

@article{arxiv.2210.00224,
  title  = {Gradient estimates for the porous medium type equations and fast diffusion type equations on complete noncompact metric measure space with compact boundary},
  author = {Xiangzhi Cao},
  journal= {arXiv preprint arXiv:2210.00224},
  year   = {2024}
}

Comments

The main theorem of this paper is not worth to publish, since the conditions is too strong and meaningless