The Hirota equation over finite fields: algebro-geometric approach and multisoliton solutions

The Hirota equation over finite fields: algebro-geometric approach and multisoliton solutions
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有限域上的 Hirota 方程:代数几何方法和多孤子解

DOI:
10.1088/0305-4470/36/17/309
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发表时间:
2002
期刊:
Journal of Physics A
影响因子:
--
通讯作者:
P. Klimczewski
P. Klimczewski
中科院分区:
--
文献类型:
--
作者:
A. Doliwa;M. Białecki;P. Klimczewski

文献摘要

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我们考虑有限域上的 Hirota 方程(广义 Toda 系统的离散模拟)。我们提出了构造方程解的一般代数几何方法。作为一个例子,我们构造了多孤子解的类似物,可以使用有理函数找到其波函数和 τ 函数。在多孤立子解决方案类别中,我们隔离了广义呼吸型解决方案,这些解决方案在复杂的现场情况下没有直接对应的解决方案。
We consider the Hirota equation (the discrete analogue of the generalized Toda system) over a finite field. We present the general algebro-geometric method of construction of solutions of the equation. As an example we construct analogues of the multisoliton solutions for which the wavefunctions and the τ-function can be found using rational functions. Within the class of multisoliton solutions we isolate generalized breather-type solutions which have no direct counterparts in the complex field case.