Results 71 to 80 of about 13,629,063 (179)
An application of nonsmooth critical point theory
, 2010 We consider a class of elliptic equation with natural growth. We obtain a region of the natural growth term with precise lower boundary less than zero.
Li, Zhouxin, Shen, Yaotian, Zhang, Yimin
openaire +1 more source
On gamma-convergence for problems of jumping type
Electronic Journal of Differential Equations, 2003 The convergence of critical values for a sequence of functionals $(f_h)$ $Gamma$-converging to a functional $f_{infty}$ is studied. These functionals are related to a classical ``jumping problem'', in which the position of two real parameters $alpha,eta$
Alessandro Groli
doaj
Sign-Changing Solutions for Nonlinear Elliptic Problems Depending on Parameters
International Journal of Differential Equations, 2010 The study of multiple solutions for quasilinear elliptic problems under Dirichlet or nonlinear Neumann type boundary conditions has received much attention over the last decades.
Siegfried Carl, Dumitru Motreanu
doaj +1 more source
Existence and multiplicity of solutions for the noncoercive Neumann p-Laplacian
Electronic Journal of Differential Equations, 2010 We consider a nonlinear Neumann problem driven by the p-Laplacian differential operator with a nonsmooth potential (hemivariational inequality). Using variational techniques based on the smooth critical point theory and the second deformation theorem,
Nikolaos S. Papageorgiou +1 more
doaj
Three nontrivial solutions for nonlocal anisotropic inclusions under nonresonance
Electronic Journal of Differential Equations, 2019 In this article, we study a pseudo-differential inclusion driven by a nonlocal anisotropic operator and a Clarke generalized subdifferential of a nonsmooth potential, which satisfies nonresonance conditions both at the origin and at infinity. We prove
Silvia Frassu +2 more
doaj
Electronic Journal of Differential Equations, 2016 In this article, we study the variational-hemivariational inequalities with Neumann boundary condition. Using a nonsmooth critical point theorem, we prove the existence of infinitely many solutions for boundary-value problems.
Fariba Fattahi, Mohsen Alimohammady
doaj
Variational-hemivariational inequalities with nonhomogeneous Neumann boundary condition
Le Matematiche, 2010 The aim of this paper is the study of variational-hemivariational inequalities with nonhomogeneous Neumann boundary condition. Sufficient conditions for the existence of a whole sequence of solutions which is either unbounded or converges to zero are ...
Dumitru Motreanu, Patrick Winkert
doaj
Two-parameter nonsmooth grazing bifurcations of limit cycles: classification and open problems [PDF]
, 2005 This paper proposes a strategy for the classification of codimension-two grazing bifurcations of limit cycles in piecewise smooth systems of ordinary differential equations.
Homer, ME +7 more
core
A deformation theorem in the noncompact nonsmooth setting and its applications
Electronic Journal of Differential Equations, 2001 We build a deformation for a continuous functional defined on a Banach space and invariant with respect to an isometric action of a noncompact group. Under these assumptions the Palais-Smale condition does not hold.
Gianni Arioli
doaj
Perturbations of even nonsmooth functionals
, 1995 An eigenvalue problem for elliptic variational inequalities is considered. The existence of multiple solutions is proved, when the operator is a small (non-odd) perturbation of an odd operator.
Degiovanni M.
core