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Instability of the soliton for the focusing, mass-critical generalized KdV equation

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arxiv 2012.00929 v1 pith:YVYHM2UV submitted 2020-12-02 math.AP

Instability of the soliton for the focusing, mass-critical generalized KdV equation

classification math.AP
keywords solitonequationgeneralizedfocusinginstabilitymassmass-criticalprove
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In this paper we prove instability of the soliton for the focusing, mass-critical generalized KdV equation. We prove that the solution to the generalized KdV equation for any initial data with mass smaller than the mass of the soliton and close to the soliton in $L^{2}$ norm must eventually move away from the soliton.

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