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This article proves a weak Harnack inequality with a tail term for sign changing supersolutions of a mixed local and nonlocal parabolic equation. Our argument is purely analytic. It is based on energy estimates and the Moser iteration…

Analysis of PDEs · Mathematics 2021-06-01 Prashanta Garain , Juha Kinnunen

We study linear pseudoparabolic equations with unbounded and time-dependent coefficients. We solve the case which has remained open in several recent studies of pseudoparabolic equations with unbounded and time-dependent coefficients. In…

Analysis of PDEs · Mathematics 2016-02-08 Sujin Khomrutai

We establish Harnack inequalities for viscosity solutions of a class of degenerate fully nonlinear anisotropic elliptic equations exhibiting non-standard growth conditions. A primary example of such operators is the degenerate anisotropic…

Analysis of PDEs · Mathematics 2026-04-10 Sun-Sig Byun , Hongsoo Kim

This paper studies a class of linear parabolic equations in non-divergence form in which the leading coefficients are measurable and they can be singular or degenerate as a weight belonging to the $A_{1+\frac{1}{n}}$ class of Muckenhoupt…

Analysis of PDEs · Mathematics 2024-10-11 Sungwon Cho , Junyuan Fang , Tuoc Phan

We study a class of parabolic equations having first order terms with superlinear (and subquadratic) growth. The model problem is the so-called viscous Hamilton-Jacobi equation with superlinear Hamiltonian. We address the problem of having…

Analysis of PDEs · Mathematics 2025-01-23 Martina Magliocca , Alessio Porretta

We study the Krylov-Safonov type H\"older estimate and Harnack inequality for viscosity solutions satisfying a uniformly parabolic equation only where the gradient with respect to the space-time variables is large.

Analysis of PDEs · Mathematics 2014-09-18 Soojung Kim

In this article we introduce a new type of nonlocal operators and study the Cauchy problem for certain parabolic-type pseudodifferential equations naturally associated to these operators. Some of these equations are the p-adic master…

Mathematical Physics · Physics 2015-06-17 L. F. Chacón-Cortes , W. A. Zúñiga-Galindo

We investigate inverse problems in the determination of leading coefficients for nonlocal parabolic operators, by knowing the corresponding Cauchy data in the exterior space-time domain. The key contribution is that we reduce nonlocal…

Analysis of PDEs · Mathematics 2023-03-14 Ching-Lung Lin , Yi-Hsuan Lin , Gunther Uhlmann

A broad class of possibly non-unique generalized kinetic solutions to hyperbolic-parabolic PDEs is introduced. Optimal regularity estimates in time and space for such solutions to nonlocal, and spatially inhomogeneous variants of the porous…

Analysis of PDEs · Mathematics 2023-11-13 Benjamin Gess , Jonas Sauer

For a general class of divergence type quasi-linear degenerate parabolic equations with measurable coeffcients and lower order terms from non-linear Kato-type classes, we prove local boundedness and continuity of solutions, and the…

Analysis of PDEs · Mathematics 2009-08-04 Vitali Liskevich , Igor I. Skrypnik

We prove the intrinsic Harnack's inequality for a general form of a parabolic equation that generalizes both the standard parabolic $p$-Laplace equation and the normalized version arising from stochastic game theory. We prove each result…

Analysis of PDEs · Mathematics 2025-06-23 Tapio Kurkinen , Jarkko Siltakoski

In this paper we prove a parabolic version of the Littlewood-Paley inequality for a class of time-dependent local and non-local operators of arbitrary order, and as an application we show this inequality gives a fundamental estimate for the…

Functional Analysis · Mathematics 2015-03-10 Ildoo Kim , Kyeong-Hun Kim , Sungbin Lim

In this paper, we consider the dual fractional parabolic problem in the right half space. We prove that the positive solutions are strictly increasing in $x_1$ direction without assuming the solutions be bounded. So far as we know, this is…

Analysis of PDEs · Mathematics 2023-03-21 Wenxiong Chen , Lingwei Ma

We study the regularity of solutions of parabolic fully nonlinear nonlocal equations. We proof Holder regularity in space and time and for translation invariant equations and under different assumptions on the kernels Holder regularity for…

Analysis of PDEs · Mathematics 2012-05-17 Héctor A. Chang Lara , Gonzalo Dávila

We discuss a parabolic version of the space of functions of bounded mean oscillation related to a doubly nonlinear parabolic partial differential equation. Parabolic John-Nirenberg inequalities, which give exponential decay estimates for…

Classical Analysis and ODEs · Mathematics 2022-02-15 Juha Kinnunen , Kim Myyryläinen , Dachun Yang

This paper aims to introduce Halanay type inequalities on time scales. By means of these inequalities we derive new global stability conditions for nonlinear dynamic equations on time scales. Giving several examples we show that beside…

Classical Analysis and ODEs · Mathematics 2016-08-14 Murat Adıvar , Elvan Akın Bohner

We study the regularity of weak solutions to nonlocal in time subdiffusion equations for a wide class of weakly singular kernels appearing in the generalised fractional derivative operator. We prove a weak Harnack inequality for nonnegative…

Analysis of PDEs · Mathematics 2024-09-10 Adam Kubica , Katarzyna Ryszewska , Rico Zacher

In this paper, we obtain Cordes-Nirenberg type estimates for nonlocal parabolic equations on the more flexible solution space $L^{\iy}_T(L^1_{\om})$ than the classical solution space $\rB(\BR^n_T)$ consisting of all bounded functions on…

Classical Analysis and ODEs · Mathematics 2015-08-18 Yong-Cheol Kim , Ki-Ahm Lee

We consider degenerate fully nonlinear parabolic equations, which generalize the p-parabolic equation with $p>2$ to nondivergence form operators. We prove an intrinsic Harnack inequality for nonnegative solutions and a weak Harnack…

Analysis of PDEs · Mathematics 2025-06-13 Vedansh Arya , Vesa Julin

We consider the Cauchy problem for 2-D incompressible isotropic elastodynamics. Standard energy methods yield local solutions on a time interval $[0,{T}/{\epsilon}]$, for initial data of the form $\epsilon U_0$, where $T$ depends only on…

Analysis of PDEs · Mathematics 2013-01-01 Zhen Lei , Thomas C. Sideris , Yi Zhou