A Local Index Formula for the Quantum Sphere

Details A Local Index Formula for the Quantum Sphere A Local Index Formula for the Quantum Sphere

2003-09-17

arxiv.org/abs/math/0309275v2

Mathematics

Quantum Algebra

17 pages; minor corrections, references added

Scientific paper

For the Dirac operator D on the standard quantum sphere we obtain an asymptotic expansion of the SU_q(2)-equivariant entire cyclic cocycle corresponding to \epsilon D when evaluated on the element k^2\in U_q(su_2). The constant term of this expansion is a twisted cyclic cocycle which up to a scalar coincides with the volume form and computes the quantum as well as the classical Fredholm indices.

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