Ključne besede: gradient-type system, Heisenberg group, variational methods, principle of symmetric criticality, symmetric solutionsCelotno besedilo (datoteka, 430,81 KB)
Ključne besede: hemivariational inequalities, variational methods, principle of symmetric criticality, radial solutions, non-radial solutionsCelotno besedilo (datoteka, 691,69 KB)
Ključne besede: fractional ▫$p(x,\cdot)$▫-Kirchhoff-type problems, ▫$p(x,\cdot)$▫-fractional Laplace operator, Ambrosetti-Rabinowitz type conditions, symmetric mountain pass theorem, Cerami compactness condition, fractional Sobolev spaces with variable exponent, multiplicity of solutionsCelotno besedilo (datoteka, 483,22 KB)