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Scattering below ground state of 3D focusing cubic fractional Schordinger equation with radial data

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arxiv 1702.03148 v3 pith:MBUDRS6X submitted 2017-02-10 math.AP

classification math.AP
keywords fractionalbelowcubicfocusingradialscatteringgroundstate
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The aim of this note is to adapt the strategy in [4][See,B.Dodson, J.Murphy, a new proof of scattering below the ground state for the 3D radial focusing cubic NLS, arXiv:1611.04195 ] to prove the scattering of radial solutions below sharp threshold for certain focusing fractional NLS with cubic nonlinearity. The main ingredient is to apply the fractional virial identity proved in [11][See,T.Boulenger, D.Himmelsbach,E.Lenzmann, Blow up for fractional NLS,J.Func.Anal,271(2016),2569-2603] to exclude the concentration of mass near the origin.

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