Acta mathematica scientia,Series B ›› 2009, Vol. 29 ›› Issue (4): 903-918.doi: 10.1016/S0252-9602(09)60077-1

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MULTIPLE SOLUTIONS FOR THE p&q-LAPLACIAN PROBLEM WITH CRITICAL EXPONENT

 LI Gong-Bao, ZHANG Guo   

  1. College of Mathematics and Statistics, Central China Normal University, Wuhan 430079, China
  • Received:2008-12-31 Online:2009-07-20 Published:2009-07-20
  • Supported by:

    Partially supported by NSFC (10571069 and 10631030), and the Lab of Mathematical Sciences, CCNU, Hubei Province, China

Abstract:

In this paper, we study the existence of multiple solutions for the following nonlinear elliptic problem of p&q-Laplacian type involving the critical Sobolev exponent:

−△pu − △qu = |u|p*−2u + μ|u|r−2u in Ω,
u|∂Ω= 0,

where Ω ⊂ RN is a bounded domain, N > p, p* = Np /Np is the critical Sobolev exponent and μ > 0. We prove that if 1 < r < q < p < N, then there is a μ0 > 0, such that for any μ ∈ (0, μ0), the above mentioned problem possesses infinitely many weak solutions. Our result generalizes a similar result in [8] for p-Laplacian type problem.

Key words: p&q-Laplacian, multiplicity of solutions, critical exponent

CLC Number: 

  • 35J60
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