Higher-dimensional generalization of abelian categories via DG-categories

Fuente: arXiv
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Autor principal: Mochizuki, Nao
Formato: Preprint
Publicado: 2025
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author Mochizuki, Nao
author_facet Mochizuki, Nao
contents In this paper, we introduce abelian $n$-truncated DG-categories as an $n$-dimensional analogue of abelian categories in the setting of DG-categories. When $n=1$, this recovers ordinary abelian categories, and when $n=\infty$, it corresponds to stable DG-categories. This notion serves as a DG-categorical analogue of abelian $(n,1)$-categories in the context of $(n,1)$-categories. We show that the homotopy categories of abelian $n$-truncated DG-categories acquire the structure of extriangulated and pretriangulated categories. Furthermore, we develop a general theory of abelian $n$-truncated DG-categories, including the analogues of the existence epi-mono factorizations of morphisms, as in classical abelian categories.
format Preprint
id arxiv_https___arxiv_org_abs_2501_06955
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Higher-dimensional generalization of abelian categories via DG-categories
Mochizuki, Nao
Category Theory
Rings and Algebras
Representation Theory
18G35, 18N20, 18G90
In this paper, we introduce abelian $n$-truncated DG-categories as an $n$-dimensional analogue of abelian categories in the setting of DG-categories. When $n=1$, this recovers ordinary abelian categories, and when $n=\infty$, it corresponds to stable DG-categories. This notion serves as a DG-categorical analogue of abelian $(n,1)$-categories in the context of $(n,1)$-categories. We show that the homotopy categories of abelian $n$-truncated DG-categories acquire the structure of extriangulated and pretriangulated categories. Furthermore, we develop a general theory of abelian $n$-truncated DG-categories, including the analogues of the existence epi-mono factorizations of morphisms, as in classical abelian categories.
title Higher-dimensional generalization of abelian categories via DG-categories
topic Category Theory
Rings and Algebras
Representation Theory
18G35, 18N20, 18G90
url https://arxiv.org/abs/2501.06955