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arXiv 2102.10619math.QAmath.OA
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关于复变形参数下紧量子群$U_q(2)$的表示与分类

Representations and Classification of the compact quantum groups $U_q(2)$ for complex deformation parameters

Satyajit Guin, Bipul Saurabh

AI总结:

本文研究了复变形参数下紧量子群$U_q(2)$的表示与分类,通过小$q$-雅各比多项式描述表示矩阵系数,并建立了彼得-沃伊尔分解和普朗查尔公式。

摘要:

本文中,我们获得了非零复变形参数$q$(非根单位)下紧量子群$U_q(2)$的不等价不可约表示的完整列表。这些表示的矩阵系数用小$q$-雅各比多项式来描述。证明了Haar状态是忠实的,并获得了$L^2(U_q(2))$的正交基。因此,我们得到了$U_q(2)$的彼得-沃伊尔分解的显式描述。作为应用,我们讨论了傅里叶变换并建立了普朗查尔公式。我们还描述了两个不可约表示张量积分解为不可约分量的过程。最后,我们对紧量子群$U_q(2)$进行了分类。

英文摘要:

In this article, we obtain a complete list of inequivalent irreducible representations of the compact quantum group $U_q(2)$ for non-zero complex deformation parameters $q$, which are not roots of unity. The matrix coefficients of these representations are described in terms of the little $q$-Jacobi polynomials. The Haar state is shown to be faithful and an orthonormal basis of $L^2(U_q(2))$ is obtained. Thus, we have an explicit description of the Peter-Weyl decomposition of $U_q(2)$. As an application, we discuss the Fourier transform and establish the Plancherel formula. We also describe the decomposition of the tensor product of two irreducible representations into irreducible components. Finally, we classify the compact quantum groups $U_q(2)$.

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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