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We introduce a new class of quasi-linear parabolic equations involving nonhomogeneous degeneracy or/and singularity $$ \partial_t u=[|D u|^q+a(x,t)|D u|^s]\left(\Delta u+(p-2)\left\langle D^2 u\frac{D u}{|D u|},\frac{D u}{|D…

Analysis of PDEs · Mathematics 2021-05-12 Yuzhou Fang , Chao Zhang

We study a nonlocal parabolic equation with an irregular kernel coefficient to establish higher H\"older regularity under an appropriate higher integrablilty on the nonhomogeneous terms and a minimal regularity assumption on the kernel…

Analysis of PDEs · Mathematics 2023-07-03 Sun-Sig Byun , Hyojin Kim , Kyeongbae Kim

We study the De Giorgi-Moser-Nash estimates of higher-order parabolic equations in divergence form with complex-valued, measurable, bounded, uniformly elliptic (in the sense of G$\mathring{a}$rding inequality) and time-independent…

Analysis of PDEs · Mathematics 2026-03-26 Guoming Zhang

We study the local behavior of the elements of a specific energy class of functions, called the nonlocal parabolic ($p$-homogenous) De Giorgi class. First we carry on an analysis of their local boundedness under optimal tail conditions, and…

Analysis of PDEs · Mathematics 2026-02-10 Simone Ciani , Kenta Nakamura

In this manuscript, we investigate regularity estimates for a class of quasilinear elliptic equations in the non-divergence form that may exhibit degenerate behavior at critical points of their gradient. The prototype equation under…

Analysis of PDEs · Mathematics 2025-05-14 Junior da Silva Bessa , João Vitor da Silva

In this manuscript, we establish the existence and sharp geometric regularity estimates for bounded solutions of a class of quasilinear parabolic equations in non-divergence form with non-homogeneous degeneracy. The model equation in this…

Analysis of PDEs · Mathematics 2025-03-07 Junior da Silva Bessa , João Vitor da Silva , Ginaldo de Santana Sá

We prove local H\"older continuity for non negative, locally bounded, local weak solutions to the class of doubly nonlinear parabolic equations $\partial_t (u_q) - \text{div} (|Du|^{p-2} Du) = 0$ for $p > 2$, $ 0 < q < p-1$. The proof…

Analysis of PDEs · Mathematics 2025-10-24 Filippo Maria Cassanello , Eurica Henriques

In this paper we study problems related to parabolic partial differential equations in metric measure spaces equipped with a doubling measure and supporting a Poincare' inequality. We give a definition of parabolic De Giorgi classes and…

Analysis of PDEs · Mathematics 2013-08-14 J. Kinnunen , N. Marola , M. Miranda , F. Paronetto

We consider the non-degenerate second-order parabolic partial differential equations of non-divergence form with bounded measurable coefficients (not necessary continuous). Under some assumptions it is known that the fundamental solution to…

Probability · Mathematics 2015-04-27 Seiichiro Kusuoka

We consider viscosity solutions to non-homogeneous degenerate and singular parabolic equations of the $p$-Laplacian type and in non-divergence form. We provide local H\"older and Lipschitz estimates for the solutions. In the degenerate…

Analysis of PDEs · Mathematics 2018-09-11 Amal Attouchi

The paper is mainly devoted to systematic developments and applications of geometric aspects of second-order variational analysis that are revolved around the concept of parabolic regularity of sets. This concept has been known in…

Optimization and Control · Mathematics 2020-06-17 Ashkan Mohammadi , Boris S. Mordukhovich , M. Ebrahim Sarabi

In this article we obtain Holder estimates for solutions to second-order Hamilton-Jacobi equations with super-quadratic growth in the gradient and unbounded source term. The estimates are uniform with respect to the smallness of the…

Analysis of PDEs · Mathematics 2017-03-06 L. F. Stokols , Alexis F. Vasseur

The purpose of this work is to produce a regularity theory for a class of parabolic Isaacs equations. Our techniques are based on approximation methods which allow us to connect our problem with a Bellman parabolic model. An approximation…

Analysis of PDEs · Mathematics 2022-01-13 Pêdra D. S. Andrade , Giane C. Rampasso , Makson S. Santos

In this work there is established an optimal existence and regularity theory for second order linear parabolic differential equations on a large class of noncompact Riemannian manifolds. Then it is shown that it provides a general unifying…

Differential Geometry · Mathematics 2016-11-29 Herbert Amann

In this paper, we consider the regularity theory for fully nonlinear parabolic integro-differential equations with symmetric kernels. We are able to find parabolic versions of Alexandrov-Backelman-Pucci estimate with 0<\sigma<2. And we show…

Analysis of PDEs · Mathematics 2011-10-14 Yong-Cheol Kim , Ki-Ahm Lee

We demonstrate a measure theoretical approach to the local regularity of weak supersolutions to elliptic and parabolic equations in divergence form. In the first part, we show that weak supersolutions become lower semicontinuous after…

Analysis of PDEs · Mathematics 2021-01-20 Naian Liao

We prove a conjecture by De Giorgi on the elliptic regularization of semilinear wave equations in the finite-time case.

Analysis of PDEs · Mathematics 2010-11-03 Ulisse Stefanelli

In this paper, we prove local H\"older continuity for the spatial gradient of weak solutions to $$u_t - \text{div} (|\nabla u|^{p-2}\nabla u) + \text{P.V.} \int_{\mathbb{R}^n} \frac{|u(x,t) - u(y,t)|^{p-2}(u(x,t)-u(y,t))}{|x-y|^{n+ps}} \ dy…

Analysis of PDEs · Mathematics 2024-12-02 Karthik Adimurthi , Harsh Prasad , Vivek Tewary

In this paper, we examine the regularity of the solutions to the double-divergence equation. We establish improved H\"older continuity as solutions approach their zero level-sets. In fact, we prove that $\alpha$-H\"older continuous…

Analysis of PDEs · Mathematics 2019-04-19 Raimundo Leitão , Edgard A. Pimentel , Makson S. Santos

The main purpose of this paper is to capture the asymptotic behavior for solutions to a class of nonlinear elliptic and parabolic equations with the anisotropic weights consisting of two power-type weights of different dimensions near the…

Analysis of PDEs · Mathematics 2024-04-23 Changxing Miao , Zhiwen Zhao