Sergiu Aizicovici, Nikolaos S. Papageorgiou, Vasile Staicu, "Degree Theory for Operators of Monotone Type and Nonlinear Elliptic Equations With Inequality Constraints"
English | ISBN: 0821841920 | 2008 | 84 pages | Djvu | 1 MB
English | ISBN: 0821841920 | 2008 | 84 pages | Djvu | 1 MB
In the first part of this paper, the authors examine the degree map of multivalued perturbations of nonlinear operators of monotone type and prove that at a local minimizer of the corresponding Euler functional, this degree equals one. Then they use this result to prove multiplicity results for certain classes of unilateral problems with nonsmooth potential (variational-hemivariational inequalities). They also prove a multiplicity result for a nonlinear elliptic equation driven by the p-Laplacian with a nonsmooth potential (hemivariational inequality) whose subdifferential exhibits an asymmetric asymptotic behavior at $ \infty$ and $-\infty$.