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Kontsevich star-product on the dual of a Lie algebra

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arxiv math/9905080 v1 pith:6TEN5M3Z submitted 1999-05-12 math.QA

Kontsevich star-product on the dual of a Lie algebra

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keywords star-productalgebradualkontsevichdimensionequivalenceequivalentexplicit
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We show that on the dual of a Lie algebra $\g$ of dimension $d$, the star-product recently introduced by M. Kontsevich is equivalent to the Gutt star-product on $\g^\ast$. We give an explicit expression for the operator realizing the equivalence between these star-products.

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  1. Quantum Mechanics on Lie Groups: II. Path Integrals

    quant-ph 2026-07 conditional novelty 6.0

    A path integral on the Hilbert space of a Lie group is built by decompactifying to the Lie algebra and summing over winding sectors in maximal tori, yielding two-loop heat-kernel coefficients for Euler-Arnold systems.