Keywords: nonlinear nonhomogeneous differential operator, nonlinear boundary condition, nonlinear regularity theory, nonlinear maximum principle, critical groupsFull text (file, 739,71 KB)
Keywords: p-Laplacian, indefinite potential, resonance, strong resonance, variational eigenvalue, nonlinear regularity, critical groups, Robin boundary conditionFull text (file, 259,14 KB)
Keywords: p-Laplacian, Robin boundary condition, resonance, critical groups, multiple nontrivial smooth solutions, indefinite potentialFull text (file, 651,78 KB)
Keywords: indefinite potential, Robin boundary condition, critical groups, superlinear reaction term, regularity theory, critical groups, nodal solutionsFull text (file, 761,32 KB)
Keywords: fractional Schrödinger equations, critical Sobolev exponent, Ambrosetti-Rabinowitz condition, concentration compactness principleFull text (file, 671,78 KB)
Keywords: indefinite and unbounded potential, critical groups, multiple solutions, nonlinear regularity, resonance, Robin boundary condition, strong comparison, truncationFull text (file, 673,65 KB)