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arXiv math/0006217math.QA
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共伴轨道及其上向量丛的$\Uh$不变量子化

$\Uh$ invariant Quantization of Coadjoint Orbits and Vector Bundles over them

J. Donin

摘要:

设M是单李群G的余伴随半单轨道.设$U_h(\g)$是对应于G的一个量子群.我们构造了M上函数层的$U_h(\g)$不变量子化的泛族,并描述了所有这样的量子化。我们还描述了M上所有的双参数$U_h(\g)$不变量子化,它们可以被认为是M上Kirillov-Kostant-Souriau(KKS)泊松括号的$U_h(\g)$不变量子化.我们还考虑了这些量子化与M的KKS括号的自然极化。利用极化,我们把M上的向量丛的截面的层作为量子化函数层上的单侧和双侧$U_h(\g)$不变模。

英文摘要:

Let M be a coadjoint semisimple orbit of a simple Lie group G. Let $U_h(\g)$ be a quantum group corresponding to G. We construct a universal family of $U_h(\g)$ invariant quantizations of the sheaf of functions on M and describe all such quantizations. We also describe all two parameter $U_h(\g)$ invariant quantizations on M, which can be considered as $U_h(\g)$ invariant quantizations of the Kirillov-Kostant-Souriau (KKS) Poisson bracket on M. We also consider how those quantizations relate to the natural polarizations of M with respect to the KKS bracket. Using polarizations, we quantize the sheaves of sections of vector bundles on M as one- and two-sided $U_h(\g)$ invariant modules over a quantized function sheaf.

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