海量图书期刊资源,随时随地畅享阅读乐趣
A weak nonsmooth palais-smale condition and coercivityNikolaos C. Kourogenis; Nikolaos S. Papageorgiou · 2000
“Two Nontrivial Critical Points for Nonsmooth Functionals via Local Linking and Applications”Dimitrios Kandilakis; Nikolaos C. Kourogenis; Nikolaos S. Papageorgiou · Journal of Global Optimization · 2006
Nonlinear Hemivariational Inequalities of Second Order Using the Method of Upper-Lower SolutionsNikolaos C. Kourogenis and Nikolaos S. Papageorgiou · Proceedings of the American Mathematical Society · 2003