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arXiv · 2110.07017

Unconditional uniqueness for the Benjamin-Ono equation

Razvan Mosincat·Didier Pilod
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Abstract

We study the unconditional uniqueness of solutions to the Benjamin-Ono equation with initial data in $H^{s}$, both on the real line and on the torus. We use the gauge transformation of Tao and two iterations of normal form reductions via integration by parts in time. By employing a refined Strichartz estimate we establish the result below the regularity threshold $s=1/6$. As a by-product of our proof, we also obtain a nonlinear smoothing property on the gauge variable at the same level of regularity.

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Razvan Mosincat, Didier Pilod. 2021-10-13. Unconditional uniqueness for the Benjamin-Ono equation. https://doi.org/10.2140/paa.2023.5.285

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