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arxiv: 2004.12075 · v1 · pith:OLUIZZX6new · submitted 2020-04-25 · 🧮 math.AP

On the derivative nonlinear Schr\"odinger equation with weakly dissipative structure

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keywords derivativedissipativeequationnonlinearodingerschrweaklycondition
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We consider the initial value problem for cubic derivative nonlinear Schr\"odinger equation in one space dimension. Under a suitable weakly dissipative condition on the nonlinearity, we show that the small data solution has a logarithmic time decay in $L^2$.

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