Multiplicity of Solutions for a Class of Fourth-Order Elliptic Problems with Asymptotically Linear Term

We study the following fourth-order elliptic equations: Δ2𝑢+𝑎Δ𝑢=𝑓(𝑥,𝑢),𝑥∈Ω,𝑢=Δ𝑢=0,𝑥∈𝜕Ω, where Ω⊂ℝ𝑁 is a bounded domain with smooth boundary 𝜕Ω and 𝑓(𝑥,𝑢) is asymptotically linear with respect to 𝑢 at infinity. Using an equivalent version of Cerami's condition and the symmetric mountain pass lem...

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Main Authors: Qiong Liu, Dengfeng Lü
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:Journal of Applied Mathematics
Online Access:http://dx.doi.org/10.1155/2012/749059
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author Qiong Liu
Dengfeng Lü
author_facet Qiong Liu
Dengfeng Lü
author_sort Qiong Liu
collection DOAJ
description We study the following fourth-order elliptic equations: Δ2𝑢+𝑎Δ𝑢=𝑓(𝑥,𝑢),𝑥∈Ω,𝑢=Δ𝑢=0,𝑥∈𝜕Ω, where Ω⊂ℝ𝑁 is a bounded domain with smooth boundary 𝜕Ω and 𝑓(𝑥,𝑢) is asymptotically linear with respect to 𝑢 at infinity. Using an equivalent version of Cerami's condition and the symmetric mountain pass lemma, we obtain the existence of multiple solutions for the equations.
format Article
id doaj-art-066ebd938d9f4e958e734dcd03e24e85
institution Kabale University
issn 1110-757X
1687-0042
language English
publishDate 2012-01-01
publisher Wiley
record_format Article
series Journal of Applied Mathematics
spelling doaj-art-066ebd938d9f4e958e734dcd03e24e852025-02-03T06:07:12ZengWileyJournal of Applied Mathematics1110-757X1687-00422012-01-01201210.1155/2012/749059749059Multiplicity of Solutions for a Class of Fourth-Order Elliptic Problems with Asymptotically Linear TermQiong Liu0Dengfeng Lü1School of Mathematics and Statistics, Hubei Engineering University, Hubei, Xiaogan 432000, ChinaSchool of Mathematics and Statistics, Hubei Engineering University, Hubei, Xiaogan 432000, ChinaWe study the following fourth-order elliptic equations: Δ2𝑢+𝑎Δ𝑢=𝑓(𝑥,𝑢),𝑥∈Ω,𝑢=Δ𝑢=0,𝑥∈𝜕Ω, where Ω⊂ℝ𝑁 is a bounded domain with smooth boundary 𝜕Ω and 𝑓(𝑥,𝑢) is asymptotically linear with respect to 𝑢 at infinity. Using an equivalent version of Cerami's condition and the symmetric mountain pass lemma, we obtain the existence of multiple solutions for the equations.http://dx.doi.org/10.1155/2012/749059
spellingShingle Qiong Liu
Dengfeng Lü
Multiplicity of Solutions for a Class of Fourth-Order Elliptic Problems with Asymptotically Linear Term
Journal of Applied Mathematics
title Multiplicity of Solutions for a Class of Fourth-Order Elliptic Problems with Asymptotically Linear Term
title_full Multiplicity of Solutions for a Class of Fourth-Order Elliptic Problems with Asymptotically Linear Term
title_fullStr Multiplicity of Solutions for a Class of Fourth-Order Elliptic Problems with Asymptotically Linear Term
title_full_unstemmed Multiplicity of Solutions for a Class of Fourth-Order Elliptic Problems with Asymptotically Linear Term
title_short Multiplicity of Solutions for a Class of Fourth-Order Elliptic Problems with Asymptotically Linear Term
title_sort multiplicity of solutions for a class of fourth order elliptic problems with asymptotically linear term
url http://dx.doi.org/10.1155/2012/749059
work_keys_str_mv AT qiongliu multiplicityofsolutionsforaclassoffourthorderellipticproblemswithasymptoticallylinearterm
AT dengfenglu multiplicityofsolutionsforaclassoffourthorderellipticproblemswithasymptoticallylinearterm