Existence and multiplicity of homoclinic solutions for a second-order Hamiltonian system

In this paper, we find new conditions to ensure the existence of one nontrivial homoclinic solution and also infinitely many homoclinic solutions for the second order Hamiltonian system u¨ − a(t)|u| p−2u + ∇W(t, u) = 0, t ∈ R, where p > 2, a ∈ C(R, R) with inft∈R a(t) > 0 and R R 1 a(t) �2/(p−...

Teljes leírás

Elmentve itt :
Bibliográfiai részletek
Szerző: Ye Yiwei
Dokumentumtípus: Folyóirat
Megjelent: 2019
Sorozat:Electronic journal of qualitative theory of differential equations
Kulcsszavak:Hamilton-rendszer
doi:10.14232/ejqtde.2019.1.11

Online Access:http://acta.bibl.u-szeged.hu/58106
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520 3 |a In this paper, we find new conditions to ensure the existence of one nontrivial homoclinic solution and also infinitely many homoclinic solutions for the second order Hamiltonian system u¨ − a(t)|u| p−2u + ∇W(t, u) = 0, t ∈ R, where p > 2, a ∈ C(R, R) with inft∈R a(t) > 0 and R R 1 a(t) �2/(p−2) dt < +∞, and W(t, x) is, as |x| → ∞, superquadratic or subquadratic with certain hypotheses different from those used in previous related studies. Our approach is variational and we use the Cerami condition instead of the Palais–Smale one for deformation arguments. 
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