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arXiv · 0910.4652

Global Attractor for Weakly Damped Forced KdV Equation in Low Regularity on T

Yongsheng Li·Yifei Wu
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Abstract

In this paper we consider the long time behavior of the weakly damped, forced Korteweg-de Vries equation in the Sololev spaces of the negative indices in the periodic case. We prove that the solutions are uniformly bounded in $\dot{H}^s(\T)$ for $s>-\dfrac{1}{2}$. Moreover, we show that the solution-map possesses a global attractor in $\dot{H}^s(\T)$ for $s>-\dfrac{1}{2}$, which is a compact set in $H^{s+3}(\T)$.

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Yongsheng Li, Yifei Wu. 2009-10-24. Global Attractor for Weakly Damped Forced KdV Equation in Low Regularity on T. https://arxiv.org/abs/0910.4652

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