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math.RT2021
Hall algebras of extriangulated categories
Li Wang, Jiaqun Wei, Haicheng Zhang
Recently, Nakaoka and Palu introduced a notion of extriangulated categories. This is a unification of exact categories and triangulated categories. In this paper, we generalize the…
math.RT2020★ 4 cited
Recollements of extriangulated categories
Li Wang, Jiaqun Wei, Haicheng Zhang
We give a simultaneous generalization of recollements of abelian categories and triangulated categories, which we call recollements of extriangulated categories. For a recollement…
math.RT2020
Semibricks in extriangulated categories
Li Wang, Jiaqun Wei, Haicheng Zhang
Let be a semibrick in an extriangulated category . Let be the filtration subcategory generated by . We give a one-to-one corre…