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arXiv 1803.01263math-phmath.MPnlin.SI
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离散时间Toda系统

Discrete time Toda systems

Yuri B. Suris

摘要:

本文讨论了现代离散可积系统理论中的几个概念,包括:基于贝克隆变换概念的时间离散化;多重Hamilton结构的辛实现;一维离散系统与格点二维系统的相互关系;- 四次方程的可积系统与拉普拉斯型的可积系统之间的相互关系; -作为离散变分系统可积性的多拉格朗日结构。所有这些概念都通过离散时间Toda格及其相对论类似物来说明。

英文摘要:

In this paper, we discuss several concepts of the modern theory of discrete integrable systems, including: - Time discretization based on the notion of Bäcklund transformation; - Symplectic realizations of multi-Hamiltonian structures; - Interrelations between discrete 1D systems and lattice 2D systems; - Multi-dimensional consistency as integrability of discrete systems; - Interrelations between integrable systems of quad-equations and integrable systems of Laplace type; - Pluri-Lagrangian structure as integrability of discrete variational systems. All these concepts are illustrated by the discrete time Toda lattices and their relativistic analogs.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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