The Cauchy Problem for Defocusing Nonlinear Schrödinger Equations with Non-Vanishing Initial Data at Infinity
Résumé
For rather general nonlinearities, we prove that defocusing nonlinear Schrödinger equations in n (n ≤ 4), with non-vanishing initial data at infinity u 0 , are globally well-posed in u 0 + H 1. The same result holds in an exterior domain in n , n = 2 3.
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