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In this paper, we study a nonlocal degenerate parabolic equation of order {\alpha} + 2 for 0<{\alpha}<2. The equation is a generalization of the one arising in the modeling of hydraulic fractures studied by Imbert and Mellet in 2011. Using…

偏微分方程分析 · 数学 2015-03-29 Rana Tarhini

We study well-posedness of degenerate mixed-type parabolic-hyperbolic equations $$ \partial_tu+\textrm{div}\big(f(u)\big)=\mathcal{L}[b(u)] $$ on bounded domains with general Dirichlet boundary/exterior conditions. The nonlocal diffusion…

偏微分方程分析 · 数学 2025-09-24 Jørgen Endal , Espen R Jakobsen , Ola Mæhlen

We consider a nonlinear 4th-order degenerate parabolic partial differential equation that arises in modelling the dynamics of an incompressible thin liquid film on the outer surface of a rotating horizontal cylinder in the presence of…

偏微分方程分析 · 数学 2009-10-30 Marina Chugunova , M. C. Pugh , R. M. Taranets

In this technical report, we consider a nonlinear 4th-order degenerate parabolic partial differential equation that arises in modelling the dynamics of an incompressible thin liquid film on the outer surface of a rotating horizontal…

偏微分方程分析 · 数学 2009-10-28 Marina Chugunova , M. C. Pugh , R. M. Taranets

In this paper, we study the existence of positive non-decreasing radial solutions of a nonlocal non-standard growth problem ruled by the fractional $g$-Laplace operator with exterior Neumann condition. Our argument exploits some properties…

偏微分方程分析 · 数学 2024-07-24 Remi Yvant Temgoua

We study well-posedness of degenerate mixed-type parabolic-hyperbolic equations $$ \partial_tu+\text{div}\big(f(u)\big)=\mathcal{L}[b(u)] $$ on bounded domains with general Dirichlet boundary/exterior conditions. The nonlocal diffusion…

偏微分方程分析 · 数学 2025-10-15 Nathaël Alibaud , Jørgen Endal , Espen Jakobsen , Ola Mæhlen

We study the dynamic behaviour of solutions to a fourth-order quasilinear degenerate parabolic equation for large times arising in fluid dynamical applications. The degeneracy occurs both with respect to the unknown and with respect to the…

偏微分方程分析 · 数学 2024-02-28 Christina Lienstromberg , Juan J. L. Velázquez

We introduce a new class of quasilinear nonlocal operators and study equations involving these operators. The operators are degenerate elliptic and may have arbitrary growth in the gradient. Included are new nonlocal versions of p-Laplace,…

偏微分方程分析 · 数学 2016-12-05 Emmanuel Chasseigne , Espen Jakobsen

We study a one-dimensional nonlocal degenerate fourth-order parabolic equation with inhomogeneous forces relevant to hydraulic fracture modeling. Employing a regularization scheme, modified energy/entropy methods, and novel differential…

偏微分方程分析 · 数学 2026-01-21 Jinhong Zhao , Bin Guo

We study the problem of existence and uniqueness of strong solutions to a degenerate quasilinear parabolic non-Newtonian thin-film equation. Originating from a non-Newtonian Navier--Stokes system the equation is derived by lubrication…

偏微分方程分析 · 数学 2019-10-18 Christina Lienstromberg , Stefan Müller

We study the gradient-flow structure of a non-Newtonian thin film equation with power-law rheology. The equation is quasilinear, of fourth order and doubly-degenerate parabolic. By adding a singular potential to the natural Dirichlet…

偏微分方程分析 · 数学 2023-01-26 Peter Gladbach , Jonas Jansen , Christina Lienstromberg

Within the framework of Hilbert spaces, we solve nonlocal problems in bounded domains with prescribed conditions on the complement of the domain. Our main focus is on the inhomogeneous Neumann problem in a rather general setting. We also…

偏微分方程分析 · 数学 2023-12-11 Guy Foghem , Moritz Kassmann

In this article, we investigate the Calder\'on problem for nonlocal parabolic equations, where we are interested to recover the leading coefficient of nonlocal parabolic operators. The main contribution is that we can relate both…

偏微分方程分析 · 数学 2023-08-21 Ching-Lung Lin , Yi-Hsuan Lin , Gunther Uhlmann

The paper deals with second order parabolic equations on bounded domains with Dirichlet conditions in arbitrary Euclidean spaces. Their interest comes from being models for describing reaction-diffusion processes in several frameworks. A…

偏微分方程分析 · 数学 2018-09-10 Irene Benedetti , Luisa Malaguti , Valentina Taddei

We study the existence of non-trivial, non-negative periodic solutions for systems of singular-degenerate parabolic equations with nonlocal terms and satisfying Dirichlet boundary conditions. The method employed in this paper is based on…

偏微分方程分析 · 数学 2014-02-10 Genni Fragnelli , Dimitri Mugnai , Paolo Nistri , Duccio Papini

We analyze the existence and multiplicity of positive solutions to a nonlocal elliptic problem involving the spectral fractional Laplace operator endowed with homogeneous mixed Dirichlet-Neumann boundary conditions and weighted critical…

偏微分方程分析 · 数学 2024-12-17 Alejandro Ortega , Luca Vilasi , Youjun Wang

In this paper, we establish a novel approach to proving existence of non-negative weak solutions for degenerate parabolic equations of fourth order, like the Cahn-Hilliard and certain thin film equations. The considered evolution equations…

偏微分方程分析 · 数学 2014-09-16 Stefano Lisini , Daniel Matthes , Giuseppe Savaré

It is well known, thanks to Lax-Wendroff theorem, that the local conservation of a numerical scheme for a conservative hyperbolic system is a simple and systematic way to guarantee that, if stable, a scheme will provide a sequence of…

数值分析 · 数学 2023-01-16 Remi Abgrall , P Bacigaluppi , S Tokareva

This paper is a continuation of our previous work [21], where we have established that, for the second-order degenerate hyperbolic equation (\p_t^2-t^m\Delta_x)u=f(t,x,u), locally bounded, piecewise smooth solutions u(t,x) exist when the…

偏微分方程分析 · 数学 2013-07-16 Zhuoping Ruan , Ingo Witt , Huicheng Yin

In this paper, we study the solvability of a Cauchy- Dirichlet problem for nonlinear parabolic equation with non standard growths and nonlocal terms. We show the existence of weak solutions of the considered problem under more general…

偏微分方程分析 · 数学 2018-03-01 Ugur Sert , Eylem Ozturk
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