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arXiv 2011.04073math-phmath.MP
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等距扩张的双Hamilton对的分类

Classification of bi-Hamiltonian pairs extended by isometries

Maxim V. Pavlov, Pierandrea Vergallo, Raffaele Vitolo

摘要:

本文的目的是对Dubrovin-Novikov型一阶Hamilton算子对进行分类,使得其中一个算子具有由其首系数的等距定义的非局部部分。这种双哈密顿对的一个例子是最近发现的常数像散方程。我们得到一个分类的情况下,2个因变量,和一个重要的新的例子,这是一个扩展的水动力型系统从一个特定的解决方案的WDVV方程。

英文摘要:

The aim of this article is to classify pairs of first-order Hamiltonian operators of Dubrovin-Novikov type such that one of them has a non-local part defined by an isometry of its leading coefficient. An example of such bi-Hamiltonian pair was recently found for the constant astigmatism equation. We obtain a classification in the case of 2 dependent variables, and a significant new example that is an extension of a hydrodynamic type system obtained from a particular solution of the WDVV equations.

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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