▫$(p,2)$▫-equations asymmetric at both zero and infinityPapageorgiou, Nikolaos (Avtor)
Rǎdulescu, Vicenţiu (Avtor)
Repovš, Dušan (Avtor)
asymmetric reactionresonanceFučik spectrumconstant sign solutionsnodal solutioncritical groupsMorse relationWe consider a ▫$(p,2)$▫-equation, that is, a nonlinear nonhomogeneous elliptic equation driven by the sum of a ▫$p$▫-Laplacian and a Laplacian with ▫$p>2$▫. The reaction term is ▫$(p-1)$▫-linear, but exhibits asymmetric behavior at ▫$\pm \infty$▫ and at ▫$0^\pm$▫. Using variational tools, together with truncation and comparison techniques and Morse theory, we prove two multiplicity theorems, one of them providing sign information for all the solutions (positive, negative, nodal).20182019-08-26 14:03:55Članek v reviji109201sl