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Existence, multiplicity and numerical examples for Schrödinger systems with nonstandard $$p(x)$$-growth conditions. (English) Zbl 1448.35258
Summary: In this paper, we deal with the Schrödinger’s problems, in the first part we study the theoretical side, we show the existence of at least three weak solutions, our main tools are based on variational inequalities, more precisely, using the three critical points theorem due to Ricceri, existence and multiplicity results are established. In the second part, we are interested in the application side, more exactly, we examine some computational problems on the discretization of finite elements of the $$p(x)$$-Laplacian, we propose a quasi-Newton minimization approach for the solution, our numerical tests show that these algorithms are able to resolve the problems with $$p(x)$$-Laplacian, for different values of $$p(x)$$.
##### MSC:
 35J92 Quasilinear elliptic equations with $$p$$-Laplacian 35A15 Variational methods applied to PDEs 65N38 Boundary element methods for boundary value problems involving PDEs
##### Software:
FreeFem++; KELLEY
Full Text:
##### References:
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