Ground state periodic solutions for Duffing equations with superlinear nonlinearities
نویسندگان
چکیده
منابع مشابه
Ground State Solutions for the Periodic Discrete Nonlinear Schrödinger Equations with Superlinear Nonlinearities
and Applied Analysis 3 In this paper, we also consider themultiplicity of solutions of (7). For each l ∈ Z, let l ∗ u = (u n+lT ) n∈Z , ∀u = (u n ) n∈Z , (21) which defines a Z-action on E. By the periodicity of the coefficients, we know that both J and J are Z-invariants. Therefore, ifu ∈ E is a critical point of J, so is l∗u. Two critical points u 1 , u 2 ∈ E of J are said to be geometricall...
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ژورنال
عنوان ژورنال: Advances in Difference Equations
سال: 2014
ISSN: 1687-1847
DOI: 10.1186/1687-1847-2014-139