Nonlinear integrodifferential equations as discrete systems

Nonlinear integrodifferential equations as discrete systems
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作为离散系统的非线性积分微分方程

DOI:
10.1088/0266-5611/15/3/310
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发表时间:
1999
期刊:
影响因子:
2.1
通讯作者:
A. Ramani
A. Ramani
中科院分区:
数学2区
文献类型:
--
作者:
K. M. Tamizhmani;J. Satsuma;B. Grammaticos;A. Ramani

文献摘要

被引文献

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本文分析了一类“中间长波”(ILW)型积分微分方程.我们表明,这些方程可以被正式解释为离散的,微分差分系统。这使我们能够将这种类型的方程与我们以前的微分延迟方程的结果联系起来,并在此基础上,提出新的ILW型可积方程。最后,我们将这种方法推广到纯差分方程,并提出了离散格点KdV方程的ILW形式。
We analyse a class of integrodifferential equations of the `intermediate long wave' (ILW) type. We show that these equations can be formally interpreted as discrete, differential-difference systems. This allows us to link equations of this type with previous results of ours involving differential-delay equations and, on the basis of this, propose new integrable equations of ILW type. Finally, we extend this approach to pure difference equations and propose ILW forms for the discrete lattice KdV equation.