Hölder regularity of weak solutions to nonlocal doubly degenerate parabolic equations

Fuente: arXiv
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Main Author: Li, Qifan
Format: Preprint
Published: 2025
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author Li, Qifan
author_facet Li, Qifan
contents We study local regularity for nonlocal doubly degenerate parabolic equations. The model equation is \begin{equation*}\begin{split} \partial_t(|u|^{q-1}u)+\mathrm{P}.\mathrm{V}.\int_{\mathbb{R}^n}\frac{|u(x,t)-u(y,t)|^{p-2}(u(x,t)-u(y,t))}{|x-y|^{n+sp}}\,\mathrm{d}y=0, \end{split} \end{equation*} where $0<s<1$, $p>2$ and $0<q<p-1$. Under a parabolic tail condition, we show that any locally bounded and sign-changing solution is locally Hölder continuous. Our proof is based on a nonlocal version of De Giorgi technique and the method of intrinsic scaling.
format Preprint
id arxiv_https___arxiv_org_abs_2509_05914
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Hölder regularity of weak solutions to nonlocal doubly degenerate parabolic equations
Li, Qifan
Analysis of PDEs
We study local regularity for nonlocal doubly degenerate parabolic equations. The model equation is \begin{equation*}\begin{split} \partial_t(|u|^{q-1}u)+\mathrm{P}.\mathrm{V}.\int_{\mathbb{R}^n}\frac{|u(x,t)-u(y,t)|^{p-2}(u(x,t)-u(y,t))}{|x-y|^{n+sp}}\,\mathrm{d}y=0, \end{split} \end{equation*} where $0<s<1$, $p>2$ and $0<q<p-1$. Under a parabolic tail condition, we show that any locally bounded and sign-changing solution is locally Hölder continuous. Our proof is based on a nonlocal version of De Giorgi technique and the method of intrinsic scaling.
title Hölder regularity of weak solutions to nonlocal doubly degenerate parabolic equations
topic Analysis of PDEs
url https://arxiv.org/abs/2509.05914