Abstract
Abstract
In this paper, we prove an exponential long time stability result for the derivative nonlinear Schödinger equation (DNLS) in some Sobolev space by using Birkhoff normal form technique and some suitable nonresonant conditions.
Funder
National Natural Science Foundation of China
Natural Science Foundation of Shandong Province
Subject
Applied Mathematics,General Physics and Astronomy,Mathematical Physics,Statistical and Nonlinear Physics