中文
相关论文

相关论文: On a nonlocal Cahn-Hilliard equation with a reacti…

200 篇论文

We will prove several existence and regularity results for the mixed local-nonlocal parabolic equation of the form \begin{eqnarray} \begin{split} u_t-\Delta u+(-\Delta)^s u&=\frac{f(x,t)}{u^{\gamma(x,t)}} \text { in } \Omega_T:=\Omega…

偏微分方程分析 · 数学 2024-02-13 Kaushik Bal , Stuti Das

We establish existence results for a class of mixed anisotropic and nonlocal $p$-Laplace equation with singular nonlinearities. We consider both constant and variable singular exponents. Our argument is based on an approximation method. To…

偏微分方程分析 · 数学 2023-03-28 Prashanta Garain , Wontae Kim , Juha Kinnunen

This paper addresses the well-posedness of a general class of bulk-surface convective Cahn--Hilliard systems with singular potentials. For this model, we first prove the existence of a global-in-time weak solution by approximating the…

偏微分方程分析 · 数学 2025-05-15 Patrik Knopf , Jonas Stange

Cahn-Hilliard-Navier-Stokes system describes the evolution of two isothermal, incompressible, immiscible fluids in a bounded domain. In this work, we consider the stationary nonlocal Cahn-Hilliard-Navier-Stokes system in two and three…

偏微分方程分析 · 数学 2020-10-01 Tania Biswas , Sheetal Dharmatti , P L N Mahendranath , Manil T Mohan

We consider a nonlinear Dirichlet problem driven by a nonhomogeneous differential operator plus an indefinite potential. In the reaction we have the competing effects of a singular term and of concave and convex nonlinearities. In this…

偏微分方程分析 · 数学 2020-05-08 Nikolaos S. Papageorgiou , Vicenţiu D. Rădulescu , Dušan D. Repovš

We consider a one dimensional periodic forward-backward parabolic equation, regularized by a non-linear fourth order term of order $\epsilon^2\ll 1$. This equation is known in the literature as Cahn-Hilliard equation with degenerate…

偏微分方程分析 · 数学 2015-10-20 Matias G. Delgadino

This paper deals with the local existence and uniqueness results for the solution of fractional differential equations with Hilfer-Hadamrd fractional derivative. Using Picard's approximations and generalizing the restrictive conditions…

经典分析与常微分方程 · 数学 2017-06-02 D B Dhaigude , Sandeep P Bhairat

This paper presents an existence result for the anisotropic Cahn--Hilliard equation characterized by a potentially concentration-dependent degenerate mobility taking into account an anisotropic energy. The model allows for the degeneracy of…

偏微分方程分析 · 数学 2025-02-20 Harald Garcke , Patrik Knopf , Andrea Signori

We consider the second order Cauchy problem $$u''+\m{u}Au=0, u(0)=u_{0}, u'(0)=u_{1},$$ where $m:[0,+\infty)\to[0,+\infty)$ is a continuous function, and $A$ is a self-adjoint nonnegative operator with dense domain on a Hilbert space. It is…

偏微分方程分析 · 数学 2008-07-10 Marina Ghisi , Massimo Gobbino

In this paper we study a nonlocal reaction-diffusion equation in which the diffusion depends on the gradient of the solution. We prove first the existence and uniqueness of regular and strong solutions. Second, we obtain the existence of…

动力系统 · 数学 2026-02-27 Rubén Caballero , Pedro Marín-Rubio , José Valero

We consider a Dirichlet type problem for a nonlinear, nonlocal equation driven by the degenerate fractional p-Laplacian, with a logistic type reaction depending on a positive parameter. In the subdiffusive and equidiffusive cases, we prove…

偏微分方程分析 · 数学 2021-01-15 Antonio Iannizzotto , Sunra Mosconi , Nikolaos S. Papageorgiou

Well-posedness \`a la Friedrichs is proved for a class of degenerate Kolmogorov equations associated to stochastic Allen-Cahn equations with logarithmic potential. The thermodynamical consistency of the model requires the potential to be…

概率论 · 数学 2022-06-22 Luca Scarpa , Margherita Zanella

We consider a differential model describing nonisothermal fast phase separation processes taking place in a three-dimensional bounded domain. This model consists of a viscous Cahn-Hilliard equation characterized by the presence of an…

偏微分方程分析 · 数学 2007-05-23 Maurizio Grasselli , Hana Petzeltova , Giulio Schimperna

We study local regularity properties of linear, non-uniformly parabolic finite-difference operators in divergence form related to the random conductance model on $\mathbb Z^d$. In particular, we provide an oscillation decay assuming only…

概率论 · 数学 2020-09-25 Peter Bella , Mathias Schäffner

In this note, we prove $\mathcal{C}^{1,\gamma}$ regularity for solutions of some fully nonlinear degenerate elliptic equations with "superlinear" and "subquadratic " Hamiltonian terms. As an application, we complete the results of…

偏微分方程分析 · 数学 2019-01-17 Isabeau Birindelli , Francoise Demengel , Fabiana Leoni

In this paper, we study the prototypical model of liquid-liquid phase separation, the Cahn-Hilliard functional, in a highly irregular setting. Specifically, we analyze potentials with low regularity vanishing on space-dependent wells. Under…

偏微分方程分析 · 数学 2026-03-27 Riccardo Cristoferi , Jakob Deutsch , Luca Pignatelli

We describe a functional framework suitable to the analysis of the Cahn-Hilliard equation on an evolving surface whose evolution is assumed to be given \textit{a priori}. The model is derived from balance laws for an order parameter with an…

偏微分方程分析 · 数学 2021-06-04 Diogo Caetano , Charles M. Elliott

We prove the existence and uniqueness of the mild solution for a nonlinear stochastic heat equation defined on an unbounded spatial domain. The nonlinearity is not assumed to be globally, or even locally, Lipschitz continuous. Instead the…

概率论 · 数学 2021-02-12 Michael Salins

We give sufficient conditions for the existence and uniqueness, in bounded uniformly convex domains $\Omega$, of solutions of degenerate elliptic equations depending also on the nonlinear gradient term $H$, in term of the size of $\Omega$,…

偏微分方程分析 · 数学 2020-04-16 I. Birindelli , G. Galise , A. Rodríguez

We obtain global and local theorems on the existence of invariant manifolds for perturbations of non autonomous linear difference equations assuming a very general form of dichotomic behavior for the linear equation. The results obtained…

动力系统 · 数学 2012-10-01 António J. G. Bento , César M. Silva