{ "id": "1410.2984", "version": "v1", "published": "2014-10-11T11:07:07.000Z", "updated": "2014-10-11T11:07:07.000Z", "title": "On a class of critical $(p,q)$-Laplacian problems", "authors": [ "Pasquale Candito", "Salvatore A. Marano", "Kanishka Perera" ], "comment": "arXiv admin note: substantial text overlap with arXiv:1406.6242", "categories": [ "math.AP" ], "abstract": "We obtain nontrivial solutions of a critical $(p,q)$-Laplacian problem in a bounded domain. In addition to the usual difficulty of the loss of compactness associated with problems involving critical Sobolev exponents, this problem lacks a direct sum decomposition suitable for applying the classical linking theorem. We show that every Palais-Smale sequence at a level below a certain energy threshold admits a subsequence that converges weakly to a nontrivial critical point of the variational functional. Then we prove an abstract critical point theorem based on a cohomological index and use it to construct a minimax level below this threshold.", "revisions": [ { "version": "v1", "updated": "2014-10-11T11:07:07.000Z" } ], "analyses": { "subjects": [ "35J92", "35B33", "58E05" ], "keywords": [ "laplacian problem", "abstract critical point theorem", "energy threshold admits", "direct sum decomposition", "nontrivial solutions" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014arXiv1410.2984C" } } }