Infinitely Many Solutions for a Class of Sublinear Schrödinger Equations
نویسندگان
چکیده
where V : R → R and f : R × R → R. In the past several decades, the existence and multiplicity of nontrivial solutions for problem (1.1) have been extensively investigated in the literature with the aid of critical point theory and variational methods. Many papers deal with the autonomous case where the potential V and the nonlinearity f are independent of x, or with the radially symmetric case where V and f depend on |x|, see for instance [1, 2, 5, 12, 18, 19] and the references therein. If the radial symmetry is lost, the problem becomes very different because of the lack of compactness. Ever since the work of Ding and Ni [7],
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