Pith. sign in

$r$ICE-closed subcategories induced by the morphism category of projective modules

1 Pith paper cite this work. Polarity classification is still indexing.

1 Pith paper citing it
abstract

Let $\Lambda$ be an Artin $R$-algebra, and ${\rm proj}\mbox{-}\Lambda$ denotes the category of all finitely generated projective $\Lambda$-modules. Define $\CP(\Lambda) := {\rm Mor}({\rm proj}\mbox{-}\Lambda)$. Due to the favorable homological properties of $\CP(\Lambda)$, we initially examine several noteworthy objects and subcategories of $\CP(\Lambda)$, subsequently relating these findings to $\mmod \Lambda$. Following our examination of Image-Cokernel-Extension closed (hereafter referred to as ICE-closed) subcategories of $\CP(\Lambda)$, among other bijections, we demonstrate a bijection between rigid objects in $\CP(\Lambda)$ and ICE-closed subcategories of $\CP(\Lambda)$ with enough Ext-projectives. In order to translate the concept of ICE-closed subcategory from $\CP(\Lambda)$ to $\mmod \Lambda$, it is necessary to introduce the framework of rICE-closed subcategories of $\mmod \Lambda$. We then establish a bijection between $\tau$-rigid modules in $\mmod \Lambda$ and rICE-closed subcategories of $\mmod \Lambda$ that possess an rExt-progenerator. This is a generalization of a bijection given by Enomoto for hereditary algebras. Our morphism approach improves a bijection given by Buan and Zhou by introducing r-cotorsion-torsion triples. We conclude our paper with further applications for $\tau$-tilting theory.

citation-role summary

background 1

citation-polarity summary

fields

math.RT 1

years

2025 1

verdicts

CONDITIONAL 1

roles

background 1

polarities

unclear 1

representative citing papers

ICE-closed subcategories and epibricks over recollements

math.RT · 2025-02-06 · conditional · novelty 5.0

Over a recollement of abelian categories, ICE-closed subcategories, epibricks and monobricks glue and reduce along the recollement, yielding a bijection for ICE-closed subcategories under a natural containment condition.

citing papers explorer

Showing 1 of 1 citing paper.

  • ICE-closed subcategories and epibricks over recollements math.RT · 2025-02-06 · conditional · none · ref 22 · internal anchor

    Over a recollement of abelian categories, ICE-closed subcategories, epibricks and monobricks glue and reduce along the recollement, yielding a bijection for ICE-closed subcategories under a natural containment condition.