在这篇论文中,作者应用非光滑分析理论把Willem[16]建立的对偶喷泉定理推广到非光滑情形,即非光滑型对偶喷泉定理.作为该定理的应用,作者研究带有凹凸非线性项的Dirichlet型微分包含问题的多解性.%In this paper we establish a nonsmooth version of dual Fountain theorem by adopt-ing the framework of nonsmooth analysis theory, which is a generalization of Theorem 3.18 of [16]. Then we present an application of this Theorem to a Dirichlet-type differential inclusion problem involving concave and convex nonlinearities.
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