On the existence of multiple nontrivial solutions for resonant Neumann problems (JNCA)
Volume 9
Number 3
pp. 351-360

On the existence of multiple nontrivial solutions for resonant Neumann problems
Nikolaos S. Papageorgiou, Sandrina R. A. Santos and Vasile Staicu

Key words Mathematices Subject Classification
Locally Lipschitz function, generalized subdifferential, double resonance, local linking, Palais-Smale condition 35J25, 35J70

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