English

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

Quantum Algebra 2010-04-23 v2 K-Theory and Homology

Abstract

Let α\alpha be a quadratic Poisson bivector on a vector space VV. Then one can also consider α\alpha as a quadratic Poisson bivector on the vector space V[1]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)S(V^*) and Λ(V)\Lambda(V). These are graded quadratic algebras, and therefore Koszul algebras. We prove that for some universal deformation quantization, independent on α\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].

Keywords

Cite

@article{arxiv.0805.0174,
  title  = {Koszul duality in deformation quantization and Tamarkin's approach to Kontsevich formality},
  author = {Boris Shoikhet},
  journal= {arXiv preprint arXiv:0805.0174},
  year   = {2010}
}

Comments

49 pages, 2 figures

R2 v1 2026-06-21T10:36:43.769Z