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Auteurs principaux: Gao, Wenyu, Xu, Fan
Format: Preprint
Publié: 2025
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Accès en ligne:https://arxiv.org/abs/2512.21546
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author Gao, Wenyu
Xu, Fan
author_facet Gao, Wenyu
Xu, Fan
contents In this paper, we investigate the relationships between Harder-Narasimhan filtrations and derived Hall algebras. We extend several results from abelian categories to triangulated categories, including Reineke inversions, wall-crossing formulas, and Joyce's elements $ε_γ$. The results in triangulated categories can be summarized via a diagram of the same form of that in abelian categories. As an application, we characterize all possibilities for stability conditions on $D^b(\mathrm{rep} A_2)$.
format Preprint
id arxiv_https___arxiv_org_abs_2512_21546
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Stability Conditions and Harder-Narasimhan Filtrations for Triangulated Categories
Gao, Wenyu
Xu, Fan
Representation Theory
In this paper, we investigate the relationships between Harder-Narasimhan filtrations and derived Hall algebras. We extend several results from abelian categories to triangulated categories, including Reineke inversions, wall-crossing formulas, and Joyce's elements $ε_γ$. The results in triangulated categories can be summarized via a diagram of the same form of that in abelian categories. As an application, we characterize all possibilities for stability conditions on $D^b(\mathrm{rep} A_2)$.
title Stability Conditions and Harder-Narasimhan Filtrations for Triangulated Categories
topic Representation Theory
url https://arxiv.org/abs/2512.21546