Frobenius condition on a pretriangulated category, and triangulation on the associated stable category

TL;DR

This paper explores conditions under which a pretriangulated category with a Frobenius structure can be used to construct a triangulated stable category, generalizing previous results by Happel and Iyama-Yoshino.

Contribution

It provides a unified framework that generalizes the construction of triangulated categories from Frobenius categories and mutation pairs in triangulated categories.

Findings

Established conditions for a Frobenius pretriangulated category to induce a triangulated stable category.

Unified previous constructions by Happel and Iyama-Yoshino into a broader theoretical framework.

Extended the understanding of how subcategory pairs influence triangulated structures.

Abstract

As shown by Happel, from any Frobenius exact category, we can construct a triangulated category as a stable category. On the other hand, it was shown by Iyama and Yoshino that if a pair of subcategories $\mathcal{D}\subseteq\mathcal{Z}$ in a triangulated category satisfies certain conditions (i.e., $(\mathcal{Z},\mathcal{Z})$ is a $\mathcal{D}$-mutation pair), then $\mathcal{Z}/\mathcal{D}$ becomes a triangulated category. In this article, we consider a simultaneous generalization of these two constructions.