A class of singularly perturbed Robin boundary value problems in critical case

This paper discusses a class of nonlinear singular perturbation problems with Robin boundary values in critical cases. By using the boundary layer function method and successive approximation theory, the corresponding asymptotic expansions of small parameters are constructed, and the existence of un...

Full description

Bibliographic Details
Main Authors: Hao Zhang, Na Wang
Format: Article
Language:English
Published: University of Szeged 2023-08-01
Series:Electronic Journal of Qualitative Theory of Differential Equations
Subjects:
Online Access:http://www.math.u-szeged.hu/ejqtde/periodica.html?periodica=1&paramtipus_ertek=publication&param_ertek=10132
_version_ 1797352383802507264
author Hao Zhang
Na Wang
author_facet Hao Zhang
Na Wang
author_sort Hao Zhang
collection DOAJ
description This paper discusses a class of nonlinear singular perturbation problems with Robin boundary values in critical cases. By using the boundary layer function method and successive approximation theory, the corresponding asymptotic expansions of small parameters are constructed, and the existence of uniformly efficient smooth solutions is proved. Meanwhile, we give a concrete example to prove the validity of our results.
first_indexed 2024-03-08T13:15:44Z
format Article
id doaj.art-c376644a908d4da0b8aa50cbaccd7db2
institution Directory Open Access Journal
issn 1417-3875
language English
last_indexed 2024-03-08T13:15:44Z
publishDate 2023-08-01
publisher University of Szeged
record_format Article
series Electronic Journal of Qualitative Theory of Differential Equations
spelling doaj.art-c376644a908d4da0b8aa50cbaccd7db22024-01-18T08:28:07ZengUniversity of SzegedElectronic Journal of Qualitative Theory of Differential Equations1417-38752023-08-0120233411810.14232/ejqtde.2023.1.3410132A class of singularly perturbed Robin boundary value problems in critical caseHao Zhang0Na Wang1School of Mathematical Sciences, Minghang Campus, East China Normal University, Shanghai, P.R. ChinaDepartment of Applied Mathematics, Shanghai Institute of Technology, Shanghai, P. R. ChinaThis paper discusses a class of nonlinear singular perturbation problems with Robin boundary values in critical cases. By using the boundary layer function method and successive approximation theory, the corresponding asymptotic expansions of small parameters are constructed, and the existence of uniformly efficient smooth solutions is proved. Meanwhile, we give a concrete example to prove the validity of our results.http://www.math.u-szeged.hu/ejqtde/periodica.html?periodica=1&paramtipus_ertek=publication&param_ertek=10132critical casesingular perturbationboundary function methodapproximate solutiondiagonalization technique
spellingShingle Hao Zhang
Na Wang
A class of singularly perturbed Robin boundary value problems in critical case
Electronic Journal of Qualitative Theory of Differential Equations
critical case
singular perturbation
boundary function method
approximate solution
diagonalization technique
title A class of singularly perturbed Robin boundary value problems in critical case
title_full A class of singularly perturbed Robin boundary value problems in critical case
title_fullStr A class of singularly perturbed Robin boundary value problems in critical case
title_full_unstemmed A class of singularly perturbed Robin boundary value problems in critical case
title_short A class of singularly perturbed Robin boundary value problems in critical case
title_sort class of singularly perturbed robin boundary value problems in critical case
topic critical case
singular perturbation
boundary function method
approximate solution
diagonalization technique
url http://www.math.u-szeged.hu/ejqtde/periodica.html?periodica=1&paramtipus_ertek=publication&param_ertek=10132
work_keys_str_mv AT haozhang aclassofsingularlyperturbedrobinboundaryvalueproblemsincriticalcase
AT nawang aclassofsingularlyperturbedrobinboundaryvalueproblemsincriticalcase
AT haozhang classofsingularlyperturbedrobinboundaryvalueproblemsincriticalcase
AT nawang classofsingularlyperturbedrobinboundaryvalueproblemsincriticalcase