Three positive solutions for a nonlinear partial discrete Dirichlet problem with ( p , q ) $(p,q)$ -Laplacian operator

Abstract In this paper, we prove the existence of three solutions to a partial difference equation with ( p , q ) $(p,q)$ -Laplacian operator by using critical point theory. Furthermore, based on the strong maximum principle, we prove that the three solutions are positive under appropriate nonlinear...

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