20.500.12556/RUL-146994 Anisotropic $(p,q)$-equations with convex and negative concave terms We consider a parametric Dirichlet problem driven by the anisotropic $(p, q)$-Laplacian and with a reaction which exhibits the combined effects of a superlinear (convex) term and of a negative sublinear term. Using variational tools and critical groups we show that for all small values of the parameter, the problem has at least three nontrivial smooth solutions, two of which are of constant sign (positive and negative). variable Lebesgue spaces variable Sobolev spaces variable ▫$(p q)$▫-operator regularity theory local minimizer critical point theory true false true Angleški jezik Ni določen Neznano 2023-06-19 11:57:03 2023-06-19 11:57:06 2023-07-07 12:04:16 0000-00-00 00:00:00 2023 0 0 Str. 425-441 0000-00-00 PostprintKoncna Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 2025-05-18 517.9 10.1007/978-3-031-20021-2_21 154485507 154457859 RAZ_Papageorgiou_Nikolaos_2023.pdf RAZ_Papageorgiou_Nikolaos_2023.pdf 1 0931B411F54FC9B212E4834F2F3CD524 00359d8b8f2c99abede767d772b35d731bd808a054cc2b94b2978145c9f4e1fc 5f26c199-0e88-11ee-a314-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=170332 https://link.springer.com/chapter/10.1007/978-3-031-20021-2_21 1 498ca351-0e87-11ee-a314-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=170331 Pedagoška fakulteta Fakulteta za matematiko in fiziko 0 0 0