Monobricks in extriangulated length categories

Fuente: arXiv
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Main Authors: Mei, Yuxia, Wang, Li, Wei, Jiaqun
Format: Preprint
Published: 2025
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author Mei, Yuxia
Wang, Li
Wei, Jiaqun
author_facet Mei, Yuxia
Wang, Li
Wei, Jiaqun
contents In this paper, we introduce the notation of monobricks in an extriangulated length category as a generalization of the semibricks. We prove that there is a bijection between monobricks and left Schur subcategories. Then we show that this bijection restricts to bijection between cofinally closed monobricks and torsion-free classes. These extend the results of Enomoto for abelian length categories.
format Preprint
id arxiv_https___arxiv_org_abs_2512_11211
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Monobricks in extriangulated length categories
Mei, Yuxia
Wang, Li
Wei, Jiaqun
Category Theory
In this paper, we introduce the notation of monobricks in an extriangulated length category as a generalization of the semibricks. We prove that there is a bijection between monobricks and left Schur subcategories. Then we show that this bijection restricts to bijection between cofinally closed monobricks and torsion-free classes. These extend the results of Enomoto for abelian length categories.
title Monobricks in extriangulated length categories
topic Category Theory
url https://arxiv.org/abs/2512.11211