Invariant tori in the discrete NLS with small amplitude diffraction management (Q926803)

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scientific article; zbMATH DE number 5277592
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Invariant tori in the discrete NLS with small amplitude diffraction management
scientific article; zbMATH DE number 5277592

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    Invariant tori in the discrete NLS with small amplitude diffraction management (English)
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    21 May 2008
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    The author investigates the following main three problems: (1) the question of persistence of breather solutions of the discrete NLS equation, (2) one-peak breather of the discrete NLS with zero residual diffraction can be continued to periodic or quasiperiodic solutions of the discrete NLS, and (3) a similar continuation should be possible for certain single-, and multi-peak breathers of the discrete NLS with small diffraction.
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    Nonlinear Schrödinger equation
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    discrete breather
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    an infinite-dimensional Hamiltonian system
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    zero and small residual diffraction
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    invariant torus of the perturbed system
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    the Floquet map
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