Long time asymptotics for the focusing nonlinear Schrödinger equation in the solitonic region with the presence of high-order discrete spectrum
Long time asymptotics for the focusing nonlinear Schrödinger equation in the solitonic region with the presence of high-order discrete spectrum
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存在高阶离散谱的孤子区聚焦非线性薛定谔方程的长时渐近
DOI:
10.1016/j.jmaa.2021.125635
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发表时间:
2021-04
影响因子:
1.3
通讯作者:
范恩贵
中科院分区:
文献类型:
--
作者:
Zhaoyu Wang;Meisen Chen;范恩贵
In this paper, we study the initial value problem for focusing nonlinear Schrödinger (fNLS) equation with non-generic weighted Sobolev initial data that allows for the presence of high-order discrete spectrum. More precisely, we show how to characterize the properties of the eigenfunctions and scattering coefficients in the presence of high-order poles; Further the initial value problem is formulated into an appropriate enlarged RH problem, which is transformed into a solvable model after a series of deformations. Finally, we obtain the asymptotic expansion of the solution of the fNLS equation in any fixed space-time cone: S (x 1, x 2, v 1, v 2):={(x, t)∈ R 2: x= x 0+ v t, x 0∈[x 1, x 2], v∈[v 1, v 2]}. Our result is a verification of the soliton resolution conjecture for the fNLS equation in the solitonic region with the presence of high-order discrete spectrum. The leading order term of this solution includes a high-order pole-soliton whose parameters are affected by soliton-soliton interactions through the cone and soliton-radiation interactions on continuous spectrum. The error term is up to O (t− 3/4) which comes from the corresponding∂¯ equation.
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DOI:
10.1007/978-3-642-15942-8_15
发表时间:
2011
期刊:
--
影响因子:
--
作者:
S. Nazarenko
通讯作者:
S. Nazarenko
影响因子:
3.7
作者:
J. Bourgain
通讯作者:
J. Bourgain
DOI:
10.1007/s00526-017-1145-5
发表时间:
2017-03
影响因子:
2.1
作者:
M. Schechter
通讯作者:
M. Schechter
影响因子:
0.6
作者:
C. Townsend;W. Ketterle;S. Stringari
通讯作者:
C. Townsend;W. Ketterle;S. Stringari
影响因子:
2.6
作者:
Weifang Weng;Zhenya Yan
通讯作者:
Weifang Weng;Zhenya Yan