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arXiv 1412.4589math.QAmath-phmath.MP
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量子轨道

Quantum Orbifolds

Antti J. Harju

摘要:

本文研究量子群的轨道折叠子(quantum orbifolds $Θ\rightrightarrows G_q$)。这些结构已经在量子$SU_2$基团的情况下被广泛研究。我将介绍一个广义的机制,它允许人们从任何紧凑的简单和单连通的量子群构造量子轨道。与量子orbifold相关联的是一个不变子代数以及一个交叉积代数。对于每个自旋量子轨道,不变子代数上存在Dirac谱三元组的酉等价类;对于每个与有限群作用相关的有效自旋量子轨道,交叉积代数上存在Dirac谱三元组的酉等价类.作为一个应用,我将研究一个Hopf-等变Fredholm指标问题。

英文摘要:

This is a study of orbifold-quotients of quantum groups (quantum orbifolds $Θ\rightrightarrows G_q$). These structures have been studied extensively in the case of the quantum $SU_2$ group. I will introduce a generalized mechanism which allows one to construct quantum orbifolds from any compact simple and simply connected quantum group. Associated with a quantum orbifold there is an invariant subalgebra as well as a crossed product algebra. For each spin quantum orbifold, there is a unitary equivalence class of Dirac spectral triples over the invariant subalgebra, and for each effective spin quantum orbifold associated with a finite group action, there is a unitary equivalence class of Dirac spectral triples over the crossed product algebra. As an application I will study a Hopf-equivariant Fredholm index problem.

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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