Multiplicity results for a perturbed elliptic Neumann problem.
Multiplicity results for nonlinear elliptic equations.
Multiplicity results for -Laplacian with critical nonlinearity of concave-convex type and sign-changing weight functions.
Multiplicity results for -sublinear -Laplacian problems involving indefinite eigenvalue problems via Morse theory.
Multivalued nonpositone problems
In this note, the existence of non-negative solutions for some multivalued non-positone elliptic problems is studied.