Acta mathematica scientia,Series A ›› 2009, Vol. 29 ›› Issue (4): 1033-1043.

• Articles • Previous Articles     Next Articles

A Concentration-Compactness Principle at Infinity on the Heisenberg Group and Multiplicity of Solutions for p-sub-Laplacian Problem Involving Critical Sobolev Exponents

  

  1. (1.School of Statistics, Xi'an Institute of Finance and Economics, Xi'an 710061, 2.Department of Applied Mathematics, Northwestern Polytechnical University, Xi'an 710072)
  • Received:2008-04-18 Revised:2009-05-27 Online:2009-08-25 Published:2009-08-25
  • Supported by:

    陕西省自然科学基础研究计划(2006A09)和西北工业大学科技创新基金(2008kJ02033)资助

Abstract:

The main results of this paper establish the concentration-compactness principle at infinity on the Heisenberg group. The authors consider
the p-sub-Laplacian problem involving critical Sobolev exponents 

 -ΔH, pu=λg(ξ)|u|q-2u+f (ξ)|u|p*-2u,  in Hn,

 u ∈ D1, p(Hn),

 where ξ ∈ Hn, λ ∈ R,1<p<Q=2n+2, n ≥ 1, 1<q<pp*=Qp/Q-pg(ξ) and f(ξ) change sign and satisfy some suitable conditions. Under certain assumptions, they show the existence of m-j pairs of nontrivial solutions via variational  method,  where m>j, both m and j are   integers. The concentration-compactness principle allows  to prove the Palais-Smale condition is satisfied below a certain level.

Key words: Heisenberg group, p-sub-Laplacian, Concentration-compactness principle,  Palais-Smale condition, Multiplicity

CLC Number: 

  • 35D05
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