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arxiv: 0805.0174 · v2 · pith:4GBHX44Tnew · submitted 2008-05-02 · 🧮 math.QA · math.KT

Koszul duality in deformation quantization and Tamarkin's approach to Kontsevich formality

classification 🧮 math.QA math.KT
keywords deformationalgebrasquantizationalphakoszulquadraticsomebivector
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Let $\alpha$ be a quadratic Poisson bivector on a vector space $V$. Then one can also consider $\alpha$ as a quadratic Poisson bivector on the vector space $V^*[1]$. Fixed a universal deformation quantization (prediction some weights to all Kontsevich graphs [K97]), we have deformation quantization of the both algebras $S(V^*)$ and $\Lambda(V)$. These are graded quadratic algebras, and therefore Koszul algebras. We prove that for some universal deformation quantization, independent on $\alpha$, these two algebras are Koszul dual. We characterize some deformation quantizations for which this theorem is true in the framework of the Tamarkin's theory [T1].

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