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- W3111829784 abstract "We consider the generalized Benjamin-Ono (gBO) equation on the real line, $ u_t + partial_x (-mathcal H u_{x} + tfrac1{m} u^m) = 0, x in mathbb R, m = 2,3,4,5$, and perform numerical study of its solutions. We first compute the ground state solution to $-Q -mathcal H Q^prime +frac1{m} Q^m = 0$ via Petviashvili's iteration method. We then investigate the behavior of solutions in the Benjamin-Ono ($m=2$) equation for initial data with different decay rates and show decoupling of the solution into a soliton and radiation, thus, providing confirmation to the soliton resolution conjecture in that equation. In the mBO equation ($m=3$), which is $L^2$-critical, we investigate solutions close to the ground state mass, and, in particular, we observe the formation of stable blow-up above it. Finally, we focus on the $L^2$-supercritical gBO equation with $m=4,5$. In that case we investigate the global vs finite time existence of solutions, and give numerical confirmation for the dichotomy conjecture, in particular, exhibiting blow-up phenomena in the supercritical setting." @default.
- W3111829784 created "2020-12-21" @default.
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- W3111829784 date "2021-11-01" @default.
- W3111829784 modified "2023-10-12" @default.
- W3111829784 title "Dynamics of solutions in the generalized Benjamin-Ono equation: A numerical study" @default.
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- W3111829784 doi "https://doi.org/10.1016/j.jcp.2021.110570" @default.
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