Low regularity well-posedness for generalized Benjamin–Ono equations on the circle
Low regularity well-posedness for generalized Benjamin–Ono equations on the circle
复制标题
圆上广义本杰明-小野方程的低正则适定性
DOI:
10.1142/s0219891621500272
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发表时间:
2020
影响因子:
0.7
通讯作者:
R. Schippa
中科院分区:
文献类型:
--
作者:
Kihyun Kim;R. Schippa
New low regularity well-posedness results for the generalized Benjamin–Ono equations with quartic or higher nonlinearity and periodic boundary conditions are shown. We use the short-time Fourier transform restriction method and modified energies to overcome the derivative loss. Previously, Molinet–Ribaud established local well-posedness in [Formula: see text] via gauge transforms. We show local existence and a priori estimates in [Formula: see text], [Formula: see text], and local well-posedness in [Formula: see text], [Formula: see text] without using gauge transforms. In case of quartic nonlinearity we prove global existence of solutions conditional upon small initial data.