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arXiv 1209.5540nlin.SImath-phmath.APmath.MP
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Fokas-Lenells方程的无规则波

Rogue waves of the Fokas-Lenells equation

Jingsong He, Shuwei Xu, Kuppuswamy Porsezian

摘要:

Fokas-Lenells(FL)方程作为模型方程出现,其通过保留直到下一个领先渐近阶的项来描述光纤中的非线性脉冲传播(在领先渐近阶中,非线性薛定谔(NLS)方程结果)。在这里,我们提出了一个明确的解析表示的流氓波的FL方程。通过推导适当的达布变换(DT)并利用相关呼吸器解的泰勒级数展开来构造该表示。当考虑某些高阶非线性效应时,给出了反常波在光纤中的传播。

英文摘要:

The Fokas-Lenells (FL) equation arises as a model eqution which describes for nonlinear pulse propagation in optical fibers by retaining terms up to the next leading asymptotic order (in the leading asymptotic order the nonlinear Schrödinger (NLS) equation results). Here we present an explicit analytical representation for the rogue waves of the FL equation. This representation is constructed by deriving an appropriate Darboux transformation (DT) and utilizing a Taylor series expansion of the associated breather solution. when certain higher-order nonlinear effects are considered, the propagation of rogue waves in optical fibers is given.

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