Dirac operator and a twisted cyclic cocycle on the standard Podles quantum sphere

Details Dirac operator and a twisted cyclic cocycle on the standard Podles quantum sphere Dirac operator and a twisted cyclic cocycle on the standard Podles quantum sphere

2003-05-02

arxiv.org/abs/math/0305051v2

J. Reine Angew. Math. 574 (2004), 219--235

Mathematics

Quantum Algebra

21 pages

Scientific paper

A Dirac operator D on the standard Podles sphere is defined and investigated. It yields a spectral triple such that |D|^{-z} is of trace class for Re z>0. Commutators with the Dirac operator give the distinguished 2-dimensional covariant differential calculus on the standard Podles sphere. The twisted cyclic cocycle associated with the volume form of the differential calculus is expressed by means of the Dirac operator.

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