Asymptotic behaviour of nonlocal p-Laplacian reaction-diffusion problems

JOURNAL OF MATHEMATICAL ANALYSIS AND APPLICATIONS

卷:459

Article

Caraballo, Tomas¹  Herrera-Cobos, Marta¹  Marin-Rubio, Pedro¹ 

[1] Univ Seville, Dept Ecuac Diferenciales Anal & Numer, C Tarfia S-N, E-41012 Seville, Spain

关键词: Nonlocal p-Laplacian equations;    Pullback attractors;    Asymptotic compactness;    Multi-valued dynamical systems;   

DOI  :  10.1016/j.jmaa.2017.11.013

来源: Elsevier

【 摘 要 】

In this paper, we focus on studying the existence of attractors in the phase spaces L-2(Omega) and L-P(Omega) (among others) for time-dependent p-Laplacian equations with nonlocal diffusion and nonlinearities of reaction diffusion type. Firstly, we prove the existence of weak solutions making use of a change of variable which allows us to get rid of the nonlocal operator in the diffusion term. Thereupon, the regularising effect of the equation is shown applying an argument of a posteriori regularity, since under the assumptions made we cannot guarantee the uniqueness of weak solutions. In addition, this argument allows to ensure the existence of an absorbing family in W-0(1,p)(Omega). This leads to the existence of the minimal pullback attractors in L-2(Omega), L-P (Omega) and some other spaces as L-P* (-) (epsilon)(Omega). Relationships between these families are also established. (C) 2017 Elsevier Inc. All rights reserved.

【 授权许可】

Free