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arXiv 1507.07488nlin.SImath.QA
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广义双阶Toda族的附加对称性

Additional symmetries of the extended bigraded Toda hierarchy

Bojko Bakalov, William Wheeless

摘要:

扩展的双阶Toda族(EBTH)是一个由$\mathbb{CP}^1$具有两个轨道点的全后裔势所满足的可积系统.我们构建了额外的对称性的EBTH和明确描述他们的行动上的拉克斯运营商,波运营商,和tau功能的层次。特别是,我们得到的无穷小对称性的EBTH的τ-函数作为一个子代数的维拉索罗代数,推广Dubrovin和张。

英文摘要:

The extended bigraded Toda hierarchy (EBTH) is an integrable system satisfied by the total descendant potential of $\mathbb{CP}^1$ with two orbifold points. We construct additional symmetries of the EBTH and describe explicitly their action on the Lax operator, wave operators, and tau-function of the hierarchy. In particular, we obtain infinitesimal symmetries of the EBTH that act on the tau-function as a subalgebra of the Virasoro algebra, generalizing those of Dubrovin and Zhang.

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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