A MULTIPLICITY THEOREM FOR LOCALLY LIPSCHITZ PERIODIC FUNCTIONALS

Citation
P. Mironescu et Vd. Radulescu, A MULTIPLICITY THEOREM FOR LOCALLY LIPSCHITZ PERIODIC FUNCTIONALS, Journal of mathematical analysis and applications, 195(3), 1995, pp. 621-637
Citations number
27
Categorie Soggetti
Mathematics, Pure",Mathematics,Mathematics,Mathematics
ISSN journal
0022247X
Volume
195
Issue
3
Year of publication
1995
Pages
621 - 637
Database
ISI
SICI code
0022-247X(1995)195:3<621:AMTFLL>2.0.ZU;2-J
Abstract
We prove in this paper a multiplicity theorem of the Ljusternik-Schnir elmann type for locally Lipschitz periodic funcitonals and related res ults. The key argument in our proofs is Ekeland's variational principl e and a non-smooth pseudo-gradient lemma. As an application of these a bstract results we solve a non-linear set-valued elliptic problem. (C) 1995 Academic Press, Inc.