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Abstract
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We consider the cubic nonlinear Schrödinger equation on the star graph with the
Kirchhoff boundary condition. We prove modified scattering for the final
state problem and the initial value problem. Moreover, we also consider
the failure of scattering for the Schrödinger equation with power-type
long-range nonlinearities. These results are extensions of the results for
the nonlinear Schrödinger equation on the one-dimensional Euclidean
space.
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Keywords
Schrödinger equation, star graph, long-range nonlinearity,
modified scattering, failure of scattering
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Mathematical Subject Classification
Primary: 35B40, 35Q55
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Milestones
Received: 31 March 2021
Accepted: 11 January 2022
Published: 16 October 2022
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