Shaowei Chen, Zhaoli Liu, Zhi-qiang Wang. A Variant of Clark's Theorem and Its Applications for Nonsmooth Functionals without the Palais-Smale Condition. SIAM J. Math. Analysis, 49(1):446-470, 2017. [doi]
@article{ChenLW17-4,
title = {A Variant of Clark's Theorem and Its Applications for Nonsmooth Functionals without the Palais-Smale Condition},
author = {Shaowei Chen and Zhaoli Liu and Zhi-qiang Wang},
year = {2017},
doi = {10.1137/15M1034635},
url = {http://dx.doi.org/10.1137/15M1034635},
researchr = {https://researchr.org/publication/ChenLW17-4},
cites = {0},
citedby = {0},
journal = {SIAM J. Math. Analysis},
volume = {49},
number = {1},
pages = {446-470},
}