Advanced search
Start date
Betweenand
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

FRACTIONAL APPROXIMATIONS OF ABSTRACT SEMILINEAR PARABOLIC PROBLEMS

Full text
Author(s):
Bezerra, Flank D. M. [1] ; Carvalho, Alexandre N. [2] ; Nascimento, Marcelo J. D. [3]
Total Authors: 3
Affiliation:
[1] Univ Fed Paraiba, Dept Matemat, BR-58051900 Joao Pessoa, Paraiba - Brazil
[2] Univ Sao Paulo, Dept Matemat, Inst Ciencias Matemat & Comp, Campus Sao Carlos, Caixa Postal 668, BR-13560970 Sao Carlos, SP - Brazil
[3] Univ Fed Sao Carlos, Dept Matemat, BR-13565905 Sao Carlos, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: DISCRETE AND CONTINUOUS DYNAMICAL SYSTEMS-SERIES B; v. 25, n. 11, p. 4221-4255, SEP 2020.
Web of Science Citations: 0
Abstract

In this paper we study the abstract semilinear parabolic problem of the form du/dt + Au = f(u), as the limit of the corresponding fractional approximations du/dt + A(alpha)u = f(u), in a Banach space X, where the operator A : D(A) subset of X -> X is a sectorial operator in the sense of Henry {[}22]. Under suitable assumptions on nonlinearities f : X-alpha -> X (X-alpha := D(A(alpha))), we prove the continuity with rate (with respect to the parameter alpha) for the global attractors (as seen in Babin and Vishik {[}4] Chapter 8, Theorem 2.1). As an application of our analysis we consider a fractional approximation of the strongly damped wave equations and we study the convergence with rate of solutions of such approximations. (AU)

FAPESP's process: 03/10042-0 - Nonlinear dynamical systems and applications
Grantee:Alexandre Nolasco de Carvalho
Support Opportunities: PRONEX Research - Thematic Grants
FAPESP's process: 14/03686-3 - The dynamics of evolution equations governed by fractional powers of closed operators
Grantee:Flank David Morais Bezerra
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 17/06582-2 - Asymptotic behavior for non-autonomous semilinear problems
Grantee:Marcelo José Dias Nascimento
Support Opportunities: Regular Research Grants