1. Superlinear perturbations of the eigenvalue problem for the Robin Laplacian plus an indefinite and unbounded potentialNikolaos S. Papageorgiou, Vicenţiu Rǎdulescu, Dušan Repovš, 2020, original scientific article Keywords: superlinear perturbation, regularity theory, maximum principle, constant sign and nodal solutions, critical groups, indefinite potential Full text (file, 661,09 KB) |
2. Nonlinear, nonhomogeneous Robin problems with indefinite potential and general reactionNikolaos S. Papageorgiou, Vicenţiu Rǎdulescu, Dušan Repovš, 2020, original scientific article Keywords: nonhomogeneous differential operator, nonlinear regularity theory, constant sign and nodal solutions, infinitely many nodal solutions, critical groups Full text (file, 397,82 KB) |
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4. Existence and multiplicity of solutions for resonant ▫$(p,2)$▫-equationsNikolaos S. Papageorgiou, Vicenţiu Rǎdulescu, Dušan Repovš, 2018, original scientific article Keywords: resonance, variational eigenvalues, critical groups, nonlinear regularity, multiple solutions, nodal solutions Full text (file, 691,44 KB) This document has more files! More... |
5. Nodal solutions for the Robin ▫$p$▫-Laplacian plus an indefinite potential and a general reaction termNikolaos S. Papageorgiou, Vicenţiu Rǎdulescu, Dušan Repovš, 2018, original scientific article Keywords: Robin p-Laplacian, indefinite potential, nodal solutions, truncation techniques, comparison principle Full text (file, 604,00 KB) This document has more files! More... |
6. ▫$(p,2)$▫-equations asymmetric at both zero and infinityNikolaos S. Papageorgiou, Vicenţiu Rǎdulescu, Dušan Repovš, 2018, original scientific article Keywords: asymmetric reaction, resonance, Fučik spectrum, constant sign solutions, nodal solution, critical groups, Morse relation Full text (file, 684,43 KB) |
7. Nodal solutions for nonlinear nonhomogeneous Robin problemsNikolaos S. Papageorgiou, Vicenţiu Rǎdulescu, Dušan Repovš, 2018, original scientific article Keywords: nodal solutions, indefinite potential, nonhomogeneous differential operator, nonlinear regularity theory, truncation and cut-off techniques Full text (file, 615,57 KB) |
8. On a class of parametric ▫$(p, 2)$▫-equationsNikolaos S. Papageorgiou, Vicenţiu Rǎdulescu, Dušan Repovš, 2017, original scientific article Keywords: near resonance, local minimizer, critical group, constant sign and nodal solutions, nonlinear maximum principle Full text (file, 711,21 KB) |
9. Robin problems with a general potential and a superlinear reactionNikolaos S. Papageorgiou, Vicenţiu Rǎdulescu, Dušan Repovš, 2017, original scientific article Keywords: indefinite potential, Robin boundary condition, critical groups, superlinear reaction term, regularity theory, critical groups, nodal solutions Full text (file, 761,32 KB) |
10. Nonhomogeneous hemivariational inequalities with indefinite potential and Robin boundary conditionNikolaos S. Papageorgiou, Vicenţiu Rǎdulescu, Dušan Repovš, 2017, original scientific article Keywords: locally Lipschitz function, Clarke subdifferential, resonance, extremal constant sign solutions, nodal solutions, nonlinear nonhomogeneous differential operator Full text (file, 514,03 KB) |