62 research outputs found

    Perturbed nonlocal fourth order equations of Kirchhoff type with Navier boundary conditions

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    Abstract We investigate the existence of multiple solutions for perturbed nonlocal fourth-order equations of Kirchhoff type under Navier boundary conditions. We give some new criteria for guaranteeing that the perturbed fourth-order equations of Kirchhoff type have at least three weak solutions by using a variational method and some critical point theorems due to Ricceri. We extend and improve some recent results. Finally, by presenting two examples, we ensure the applicability of our results

    Підходи до еліптичних задач з p(x)-лапласіаном основане на теорії критичних точок

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    We establish the existence of at least three solutions for elliptic problems driven by a p(x)-Laplacian. The existence of at least one nontrivial solution is also proved. The approaches are based on the variational methods and critical-point theory.Встановлено існування принаймні трьох розв'язків еліптичних задач з p(x)-лапласіаном. Існування щонайменше одного нетривіального розв'язку також продемонстровано. Застосовані підходи ґрунтуються на варіаційних методах та теорії критичних точок.Research of S. Heidarkhani was in part supported by a grant from IPM (No. 91470046

    Multiplicity results for a two-point boundary value double eigenvalue problem

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    On a Dirichlet problem involving p-Laplacian

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