期刊
COMMUNICATIONS ON PURE AND APPLIED ANALYSIS
卷 4, 期 1, 页码 9-22出版社
AMER INST MATHEMATICAL SCIENCES-AIMS
DOI: 10.3934/cpaa.2005.4.9
关键词
p&q-Laplacian; variational principles; existence of non-negative solution
In this paper, we analyse a family of stationary nonlinear equations with p&q- Laplacian -Delta(p)u - Delta(q)u = lambda c(x, u) which have a wide spectrum of applications in many areas of science. We introduce a new type of variational principles corresponding to this family of equations. Using this formalism, we exhibit intervals for the scalar parameter lambda where there exist positive solutions of the considered problems. Furthermore, we prove, in another interval, the nonexistence of nontrivial solutions. These results are different from those of existence and nonexistence for stationary equations with single Laplacian.
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