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Exponential attractors for a nonlocal delayed reaction-diffusion equation on an unbounded domain.

Authors :
Hu, Wenjie
Caraballo, Tomás
Source :
Proceedings of the American Mathematical Society. Nov2024, Vol. 152 Issue 11, p4785-4797. 13p.
Publication Year :
2024

Abstract

The main objective of this paper is to investigate exponential attractors for a nonlocal delayed reaction-diffusion equation on an unbounded domain. We first obtain the existence of a globally attractive absorbing set for the dynamical system generated by the equation under the assumption that the nonlinear term is bounded. Then, we construct exponential attractors of the equation directly in its natural phase space, i.e., a Banach space with explicit fractal dimension by combining squeezing properties of the system as well as a covering lemma of finite dimensional subspaces of a Banach space. Our result generalizes the methods established in Hilbert spaces and weighted spaces, and the fractal dimension of the obtained exponential attractor does not depend on the entropy number but only depends on some inner characteristic of the studied equation. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00029939
Volume :
152
Issue :
11
Database :
Academic Search Index
Journal :
Proceedings of the American Mathematical Society
Publication Type :
Academic Journal
Accession number :
179998698
Full Text :
https://doi.org/10.1090/proc/16978