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arXiv 2003.04234math.QAmath-phmath.MP
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$\mathcal W$代数通过量子环面代数的变形

Deformations of $\mathcal W$ algebras via quantum toroidal algebras

B. Feigin, M. Jimbo, E. Mukhin, I. Vilkoviskiy

摘要:

$\textsf{A}$型的变形$\mathcal W$代数用量子环形$\mathfrak{gl}_1$代数$\mathcal E$有统一的描述.本文引入了一个在$\mathcal E$上的余代数$\mathcal K$,它给出了$\textsf{B},\textsf{C},\textsf{D}$型(包括扭曲和超对称情形)的基本变形$\mathcal W$流和屏蔽算子的统一构造.证明了代数$\mathcal K$的完备化包含三个交换子代数.特别是,它使我们能够获得一个交换家庭的运动积分与仿射Dynkin图的所有非例外类型,除了$\textsf{D}^{(2)}_{\ell+1}$。我们还得到了统一的方式变形有限和仿射Cartan矩阵的所有经典类型连同一些新的例子,并讨论了相应的屏蔽算子。

英文摘要:

The deformed $\mathcal W$ algebras of type $\textsf{A}$ have a uniform description in terms of the quantum toroidal $\mathfrak{gl}_1$ algebra $\mathcal E$. We introduce a comodule algebra $\mathcal K$ over $\mathcal E$ which gives a uniform construction of basic deformed $\mathcal W$ currents and screening operators in types $\textsf{B},\textsf{C},\textsf{D}$ including twisted and supersymmetric cases. We show that a completion of algebra $\mathcal K$ contains three commutative subalgebras. In particular, it allows us to obtain a commutative family of integrals of motion associated with affine Dynkin diagrams of all non-exceptional types except $\textsf{D}^{(2)}_{\ell+1}$. We also obtain in a uniform way deformed finite and affine Cartan matrices in all classical types together with a number of new examples, and discuss the corresponding screening operators.

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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