Existence of a minimal non-scattering solution to the mass-subcritical generalized Korteweg-de Vries equation
Abstract
In this article, we prove existence of a non-scattering solution, which is minimal in some sense, to the mass-subcritical generalized Korteweg-de Vries (gKdV) equation in the scale critical Lr space. We construct this solution by a concentration compactness argument. Then, key ingredients are a linear profile decomposition result adopted to Lr-framework and approximation of solutions to the gKdV equation which involves rapid linear oscillation by means of solutions to the nonlinear Schr"odinger equation.
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