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Multistability and localized attractors in a dissipative discrete NLS equation

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  • We consider a finite discrete nonlinear Schrödinger equation with localized forcing, damping, and nonautonomous perturbations. In the autonomous case these systems are shown numerically to have multiple attracting spatially localized solutions. In the nonautonomous case we study analytically some properties of the pullback attractor of the system, assuming that the origin of the corresponding autonomous system is hyberbolic. We also see numerically the persistence of multiple localized attracting states under different types of nonautonomous perturbations.
    Mathematics Subject Classification: Primary: 34D45, 37D05, 37F15; Secondary: 37B55.


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