Global well-posedness and limit behavior for a higher-order Benjamin-Ono equation

Details Global well-posedness and limit behavior for a higher-order Benjamin-Ono equation Global well-posedness and limit behavior for a higher-order Benjamin-Ono equation

2011-11-03

arxiv.org/abs/1111.0858v1

Mathematics

Analysis of PDEs

Scientific paper

In this paper, we prove that the Cauchy problem associated to the following higher-order Benjamin-Ono equation $$ \partial_tv-b\mathcal{H}\partial^2_xv- a\epsilon \partial_x^3v=cv\partial_xv-d\epsilon \partial_x(v\mathcal{H}\partial_xv+\mathcal{H}(v\partial_xv)), $$ is globally well-posed in the energy space $H^1(\mathbb R)$. Moreover, we study the limit behavior when the small positive parameter $\epsilon$ tends to zero and show that, under a condition on the coefficients $a$, $b$, $c$ and $d$, the solution $v_{\epsilon}$ to this equation converges to the corresponding solution of the Benjamin-Ono equation.

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