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Differential graded Koszul duality: an introductory survey

Published 14 Jul 2022 in math.CT, math.HO, and math.RA | (2207.07063v5)

Abstract: This is an overview on derived nonhomogeneous Koszul duality over a field, mostly based on the author's memoir arXiv:0905.2621. The paper is intended to serve as a pedagogical introduction and a summary of the covariant duality between DG-algebras and curved DG-coalgebras, as well as the triality between DG-modules, CDG-comodules, and CDG-contramodules. Some personal reminiscences are included as a part of historical discussion.

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Authors (1)

  1. Leonid Positselski 

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