activity
20082026
most cited-exangulated categories

24 citations · 96 across the 30 of their papers we have counts for

collaborators

31 papers

math.CT2026

Extended heart construction (I): The heart of -cotorsion pairs on triangulated categories

Nao Mochizuki, Hiroyuki Nakaoka, Yasuaki Ogawa

The heart of a -structure and the ideal quotient by a cluster tilting subcategory are classical constructions that produce abelian categories from triangulated categories. Their…

math.CT2026

Higher exact dg-categories

Nao Mochizuki, Hiroyuki Nakaoka

We introduce the notion of an -exact dg-category. This notion provides a higher analogue of Chen's exact dg-category, in the sense that the case where equals 1 recovers exac…

math.RT2023★ 1 cited

Hereditary extriangulated categories: Silting objects, mutation, negative extensions

Mikhail Gorsky, Hiroyuki Nakaoka, Yann Palu

In this article, we initiate the study of hereditary extriangulated categories. Many important categories arising in representation theory in connection with various theories of mu…

math.CT2021★ 5 cited

Positive and negative extensions in extriangulated categories

Mikhail Gorsky, Hiroyuki Nakaoka, Yann Palu

We initiate the study of derived functors in the setting of extriangulated categories. By using coends, we adapt Yoneda's theory of higher extensions to this framework. We show tha…

math.CT2021★ 3 cited

Localization of extriangulated categories

Hiroyuki Nakaoka, Yasuaki Ogawa, Arashi Sakai

In this article, we show that the localization of an extriangulated category by a multiplicative system satisfying mild assumptions can be equipped with a natural, universal struct…

math.CT2020★ 13 cited

External triangulation of the homotopy category of exact quasi-category

Hiroyuki Nakaoka, Yann Palu

Extriangulated categories axiomatize extension-closed subcategories of triangulated categories. We show that the homotopy category of an exact quasi-category can be equipped with a…