Multiple solutions for nonlinear periodic systems with combined nonlinearities and a nonsmooth potential (JNCA)
Volume 13
Number 4
pp. 681-693

Multiple solutions for nonlinear periodic systems with combined nonlinearities and a nonsmooth potential
Nikolaos S. Papageorgiou and Francesca Papalini

Key words Mathematices Subject Classification
Concave term, nonsmooth p-superlinear potential, Ambrosetti-Rabinovitz condition, nonsmooth critical point theory, Ekeland variational principle Primary 34B15; Secondary 34C25, 49J53

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