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Article Contents

# Gap solitons in periodic discrete nonlinear Schrödinger equations II: A generalized Nehari manifold approach

• In the present article we obtain the existence of so-called ground gap solitons in discrete periodic nonlinear Schrödinger equations with cubic nonlinearity. To do that we employ a periodic approximation technique and a generalized Nehari manifold approach.
Mathematics Subject Classification: 35Q55, 35Q51, 39A12, 39A70, 78A40.

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