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arXiv 2108.02769math-phmath.MPnlin.SI
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正则PN结构的Poisson拟Nijenhuis形变

Poisson quasi-Nijenhuis deformations of the canonical PN structure

Gregorio Falqui, Igor Mencattini, Marco Pedroni

摘要:

本文给出了一个结果,它允许我们通过闭2-形式将Poisson-Nijenhuis流形变形为Poisson-quasi-Nijenhuis流形。在附加假设下,变形结构也是Poisson-Nijenhuis。我们应用这一结果来证明,R^2n上的正则泊松-尼琴赫伊斯结构既产生了由达斯和大久保[6]引入的开放(或非周期)n粒子Toda晶格的泊松-尼琴赫伊斯结构,也产生了我们最近的工作[7]中描述的封闭(或周期)n粒子Toda晶格的泊松准尼琴赫伊斯结构。

英文摘要:

We present a result which allows us to deform a Poisson-Nijenhuis manifold into a Poisson quasi-Nijenhuis manifold by means of a closed 2-form. Under an additional assumption, the deformed structure is also Poisson-Nijenhuis. We apply this result to show that the canonical Poisson-Nijenhuis structure on R^2n gives rise to both the Poisson-Nijenhuis structure of the open (or non periodic) n-particle Toda lattice, introduced by Das and Okubo [6], and the Poisson quasi-Nijenhuis structure of the closed (or periodic) n-particle Toda lattice, described in our recent work [7].

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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