Abstract
In this paper, we study the Cauchy problem for the Benjamin-Ono-Burgers equation \({\partial _t}u - \epsilon \partial _x^2u + {\cal H}\partial _x^2u + u{u_x} = 0\), where \({\cal H}\) denotes the Hilbert transform operator. We obtain that it is uniformly locally well-posed for small data in the refined Sobolev space \({\tilde H^\sigma }(\mathbb{R})\,\,(\sigma \geqslant 0)\), which is a subspace of L2(ℝ). It is worth noting that the low-frequency part of \({\tilde H^\sigma }(\mathbb{R})\) is scaling critical, and thus the small data is necessary. The high-frequency part of \({\tilde H^\sigma }(\mathbb{R})\) is equal to the Sobolev space Hσ (ℝ) (σ ⩾ 0) and reduces to L2(ℝ). Furthermore, we also obtain its inviscid limit behavior in \({\tilde H^\sigma }(\mathbb{R})\) (σ ⩾ 0).
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Acknowledgements
The first author was supported by National Natural Science Foundation of China (Grant No. 12001236). The second author was supported by National Natural Science Foundation of China (Grant No. 11731014). The third author was supported by National Natural Science Foundation of China (Grant No. 11971166).
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Chen, M., Guo, B. & Han, L. Uniform local well-posedness and inviscid limit for the Benjamin-Ono-Burgers equation. Sci. China Math. 65, 1553–1576 (2022). https://doi.org/10.1007/s11425-020-1807-4
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DOI: https://doi.org/10.1007/s11425-020-1807-4