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arXiv math/9812085math.QA
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量子群SU_q(2)上微分的交换子表示

Commutator Representations of Differential Calculi on the Quantum Group SU_q(2)

Konrad Schmuedgen

摘要:

设(Γ,d)是量子群SU_q(2)上的3D演算或D_{\pm}演算.本文描述了O(SU_q(2))的一个 *-表示π和一个对称算子F在表示空间上的所有对(π,F),该表示空间满足关于其定义域的一个技术条件,使得存在一个一阶微分演算的同态,该同态将dx映射到交换子[iF,π(x)]中,x为\in O(SU_q(2)).作为应用,给出了Podles量子2-球面S^2_{qc}(c=0)上的2维左协变演算的换位子表示。

英文摘要:

Let (Γ,d) be the 3D-calculus or the 4D_{\pm}-calculus on the quantum group SU_q(2). We describe all pairs (π, F) of a *-representation πof O(SU_q(2)) and of a symmetric operator F on the representation space satisfying a technical condition concerning its domain such that there exist a homomorphism of first order differential calculi which maps dx into the commutator [iF,π(x)] for x\in O(SU_q(2)). As an application commutator representations of the 2-dimensional left-covariant calculus on Podles' quantum 2-sphere S^2_{qc} with c=0 are given.

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