On the Cauchy problem of a two-dimesional Benjamin-Ono equation

TL;DR

This paper proves local well-posedness of a two-dimensional Benjamin-Ono equation in certain Sobolev and weighted spaces for regularity levels above 2.

Contribution

It establishes the local well-posedness of the 2D Benjamin-Ono equation in Sobolev and weighted spaces, extending previous results to higher dimensions and regularity.

Findings

Well-posedness in Sobolev spaces for s > 2

Well-posedness in weighted spaces

Extension of results to two-dimensional case

Abstract

In this work we shall show that the Cauchy problem \begin{equation} \left\{ \begin{aligned} &(u_t+u^pu_x+\mathcal H\partial_x^2u+ \alpha\mathcal H\partial_y^2u )_x - \gamma u_{yy}=0 \quad p\in{\nat} &u(0;x,y)=\phi{(x,y)} \end{aligned} \right. \end{equation} is locally well-posed in the Sobolev spaces $H^s({\re}^2)$, $X^s$ and weighted spaces $X_s(w^2)$, for $s>2$.