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arXiv math/9902130math.QAmath-phmath.DGmath.MP
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量子群上双共变微分的Hodge算子和Laplace-Beltrami算子

Hodge and Laplace-Beltrami Operators for Bicovariant Differential Calculi on Quantum Groups

I. Heckenberger

摘要:

对于量子矩阵群上的双共变微分演算,给出了度量张量、Hodge算子、余微分和Laplace-Beltrami算子等经典概念在任意k-形式下的推广.在一定的技术假设下,证明了Woronowicz的左不变微分形式的外代数要么包含唯一的极大次形式,要么是无穷维的。利用Hecke代数的Jucys-Murphy元计算了霍普夫代数O(SLq(N))的Laplace-Beltrami算子的特征值.

英文摘要:

For bicovariant differential calculi on quantum matrix groups a generalisation of classical notions such as metric tensor, Hodge operator, codifferential and Laplace-Beltrami operator for arbitrary k-forms is given. Under some technical assumptions it is proved that Woronowicz' external algebra of left-invariant differential forms either contains a unique form of maximal degree or it is infinite dimensional. Using Jucys-Murphy elements of the Hecke algebra the eigenvalues of the Laplace-Beltrami operator for the Hopf algebra O(SLq(N)) are computed.

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