Global multiplicity for parametric anisotropic Neumann $(p,q)$-equationsPapageorgiou, Nikolaos S. (Avtor) Rǎdulescu, Vicenţiu (Avtor) Repovš, Dušan (Avtor) anisotropic operatorsuperlinear reactionpositive and nodal solutionscritical groupsWe consider a Neumann boundary value problem driven by the anisotropic $(p,q)$-Laplacian plus a parametric potential term. The reaction is "superlinear". We prove a global (with respect to the parameter) multiplicity result for positive solutions. Also, we show the existence of a minimal positive solution and finally, we produce a nodal solution.20232023-05-08 08:33:28Članek v reviji145679sl