Stability of periodic waves for the fractional KdV and NLS equations
Stability of periodic waves for the fractional KdV and NLS equations
复制标题
分数 KdV 和 NLS 方程的周期波稳定性
DOI:
10.1017/prm.2020.54
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Stefanov, Atanas G.
中科院分区:
文献类型:
--
作者:
Hakkaev, Sevdzhan;Stefanov, Atanas G.
We consider the focussing fractional periodic Korteweg–deVries (fKdV) and fractional periodic non-linear Schrödinger equations (fNLS) equations, with L2 sub-critical dispersion. In particular, this covers the case of the periodic KdV and Benjamin-Ono models. We construct two parameter family of bell-shaped travelling waves for KdV (standing waves for NLS), which are constrained minimizers of the Hamiltonian. We show in particular that for each , which is non-degenerate. We also show that the waves are spectrally stable and orbitally stable, provided the Cauchy problem is locally well-posed in Hα/2[ − T, T] and a natural technical condition. This is done rigorously, without any a priori assumptions on the smoothness of the waves or the Lagrange multipliers.
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影响因子:
2.4
作者:
A. Stefanov
通讯作者:
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影响因子:
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作者:
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DOI:
--
发表时间:
1990
期刊:
影响因子:
--
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DOI:
10.1090/surv/156/03
发表时间:
2009
期刊:
Physica D: Nonlinear Phenomena
影响因子:
--
作者:
J. Pava
通讯作者:
J. Pava
影响因子:
1.4
作者:
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