Noncoercive resonant (p,2)-equations with concave terms

We consider a nonlinear Dirichlet problem driven by the sum of a p-Laplace and a Laplacian (a (p,2){(p,2)}-equation). The reaction exhibits the competing effects of a parametric concave term plus a Caratheodory perturbation which is resonant with respect to the principle eigenvalue of the Dirichlet...

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Main Authors: Papageorgiou Nikolaos S., Zhang Chao
Format: Article
Language:English
Published: De Gruyter 2018-10-01
Series:Advances in Nonlinear Analysis
Subjects:
Online Access:https://doi.org/10.1515/anona-2018-0175
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author Papageorgiou Nikolaos S.
Zhang Chao
author_facet Papageorgiou Nikolaos S.
Zhang Chao
author_sort Papageorgiou Nikolaos S.
collection DOAJ
description We consider a nonlinear Dirichlet problem driven by the sum of a p-Laplace and a Laplacian (a (p,2){(p,2)}-equation). The reaction exhibits the competing effects of a parametric concave term plus a Caratheodory perturbation which is resonant with respect to the principle eigenvalue of the Dirichlet p-Laplacian. Using variational methods together with truncation and comparison techniques and Morse theory (critical groups), we show that for all small values of the parameter, the problem has as least six nontrivial smooth solutions all with sign information (two positive, two negative and two nodal (sign changing)).
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spelling doaj.art-2c11e66f9cad40688275bcbba32c5f892022-12-21T20:04:08ZengDe GruyterAdvances in Nonlinear Analysis2191-950X2018-10-019122824910.1515/anona-2018-0175anona-2018-0175Noncoercive resonant (p,2)-equations with concave termsPapageorgiou Nikolaos S.0Zhang Chao1Department of Mathematics, National Technical University, Zografou Campus, Athens15780, GreeceDepartment of Mathematics and Institute for Advanced Study in Mathematics, Harbin Institute of Technology, Harbin150001, P. R. ChinaWe consider a nonlinear Dirichlet problem driven by the sum of a p-Laplace and a Laplacian (a (p,2){(p,2)}-equation). The reaction exhibits the competing effects of a parametric concave term plus a Caratheodory perturbation which is resonant with respect to the principle eigenvalue of the Dirichlet p-Laplacian. Using variational methods together with truncation and comparison techniques and Morse theory (critical groups), we show that for all small values of the parameter, the problem has as least six nontrivial smooth solutions all with sign information (two positive, two negative and two nodal (sign changing)).https://doi.org/10.1515/anona-2018-0175concave termresonancenonlinear regularity theorynonlinear maximum principle,strong comparison principletruncationcritical groupsconstant sign and nodal solutions35j20 35j60 58e05
spellingShingle Papageorgiou Nikolaos S.
Zhang Chao
Noncoercive resonant (p,2)-equations with concave terms
Advances in Nonlinear Analysis
concave term
resonance
nonlinear regularity theory
nonlinear maximum principle,strong comparison principle
truncation
critical groups
constant sign and nodal solutions
35j20
35j60
58e05
title Noncoercive resonant (p,2)-equations with concave terms
title_full Noncoercive resonant (p,2)-equations with concave terms
title_fullStr Noncoercive resonant (p,2)-equations with concave terms
title_full_unstemmed Noncoercive resonant (p,2)-equations with concave terms
title_short Noncoercive resonant (p,2)-equations with concave terms
title_sort noncoercive resonant p 2 equations with concave terms
topic concave term
resonance
nonlinear regularity theory
nonlinear maximum principle,strong comparison principle
truncation
critical groups
constant sign and nodal solutions
35j20
35j60
58e05
url https://doi.org/10.1515/anona-2018-0175
work_keys_str_mv AT papageorgiounikolaoss noncoerciveresonantp2equationswithconcaveterms
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