An injective Model for Twisted Derived Categories and Curved Koszul Triality

Fuente: arXiv
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Autori principali: Hoyer, Yannick, Rasmussen, Kristoffer Rank
Natura: Preprint
Pubblicazione: 2025
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author Hoyer, Yannick
Rasmussen, Kristoffer Rank
author_facet Hoyer, Yannick
Rasmussen, Kristoffer Rank
contents Given a curved differential graded algebra $A$, we define a new model structure on the category of curved differential graded $A$-modules, called the injective Guan-Lazarev model structure. We prove that the category of CDG $A$-modules with this model structure is Quillen equivalent to the category of curved differential graded contramodules over the extended bar-construction of $A$, equipped with the contraderived model structure. This result can be seen as bridging the gap between Positselski's theory of conilpotent Koszul triality and Guan-Lazarev's work on non-conilpotent Koszul duality. As an application, we use the injective Guan-Lazarev model structure to show that the tensor product is a Quillen bifunctor with respect to these model structures of the second kind.
format Preprint
id arxiv_https___arxiv_org_abs_2511_03500
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle An injective Model for Twisted Derived Categories and Curved Koszul Triality
Hoyer, Yannick
Rasmussen, Kristoffer Rank
Category Theory
Given a curved differential graded algebra $A$, we define a new model structure on the category of curved differential graded $A$-modules, called the injective Guan-Lazarev model structure. We prove that the category of CDG $A$-modules with this model structure is Quillen equivalent to the category of curved differential graded contramodules over the extended bar-construction of $A$, equipped with the contraderived model structure. This result can be seen as bridging the gap between Positselski's theory of conilpotent Koszul triality and Guan-Lazarev's work on non-conilpotent Koszul duality. As an application, we use the injective Guan-Lazarev model structure to show that the tensor product is a Quillen bifunctor with respect to these model structures of the second kind.
title An injective Model for Twisted Derived Categories and Curved Koszul Triality
topic Category Theory
url https://arxiv.org/abs/2511.03500