Results 81 to 90 of about 556,903 (189)

Existence of infinitely many radial solutions for quasilinear Schrodinger equations

open access: yesElectronic Journal of Differential Equations, 2014
In this article we prove the existence of radial solutions with arbitrarily many sign changes for quasilinear Schrodinger equation $$ -\sum_{i,j=1}^{N}\partial_j(a_{ij}(u)\partial_iu) +\frac{1}{2}\sum_{i,j=1}^{N}a'_{ij}(u)\partial_iu\partial_ju+V(x ...
Gui Bao, Zhiqing Han
doaj  

Infinitely many solutions to fourth order superlinear periodic problems

open access: bronze, 2003
Monica Conti   +2 more
openalex   +1 more source

Existence of infinitely many periodic solutions for second-order Hamiltonian systems

open access: yesElectronic Journal of Differential Equations, 2013
By using the variant of the fountain theorem, we study the existence of infinitely many periodic solutions for a class of superquadratic nonautonomous second-order Hamiltonian systems.
Hua Gu, Tianqing An
doaj  

Infinitely many solutions for the p-Laplace equations with nonsymmetric perturbations

open access: yesElectronic Journal of Differential Equations, 2008
In this article, we study Dirichlet problems involving the p-Laplacian with a nonsymmetric term. By using the large Morse index of the corresponding Laplace equation, we establish an estimate on the growth of the min-max values for a functional ...
Di Geng, Disheng Liu
doaj  

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