On decay and regularly of solutions of the Benjamin-Ono equation

Felipe Linares; Gustavo Ponce

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arXiv · 2509.06816

On decay and regularly of solutions of the Benjamin-Ono equation

Felipe Linares·Gustavo Ponce

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Abstract

We study persistence properties of solutions of the Benjamin-Ono equation in weighted Sobolev spaces. Roughly, we show that for $\beta<7/2$, the solution $u(x,t)$ of the BO remains in the space $L^2(|x|^{2\beta} dx)$ if and only if its data $u(x,0)$ belongs to this space and it is regular enough, i.e. $u_0\in H^{\beta}(\mathbb R)$.

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Felipe Linares, Gustavo Ponce. 2025-09-08. On decay and regularly of solutions of the Benjamin-Ono equation. https://arxiv.org/abs/2509.06816

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