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In this paper we prove existence of periodic solutions to a nonlinear evolution system of second order partial differential equations involving the pseudo-Laplacian operator. To show the existence of periodic solutions we use Faedo-Galerkin method with a Schauder fixed point argument. 相似文献
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Nelson Nery de Oliveira Castro 《Applications of Mathematics》1997,42(6):411-420
We prove existence and asymptotic behaviour of a weak solutions of a mixed problem for
where A is the pseudo-Laplacian operator. 相似文献
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