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Homotopy cartesian squares in extriangulated categories

Authors :
He Jing
Xie Chenbei
Zhou Panyue
Source :
Open Mathematics, Vol 21, Iss 1, Pp 119-221 (2023)
Publication Year :
2023
Publisher :
De Gruyter, 2023.

Abstract

Let (C,E,s)\left({\mathcal{C}},{\mathbb{E}},{\mathfrak{s}}) be an extriangulated category. Given a composition of two commutative squares in C{\mathcal{C}}, if two commutative squares are homotopy cartesian, then their composition is also a homotopy cartesian square. This covers the result by Mac Lane [Categories for the Working Mathematician, Second edition, Graduate Texts in Mathematics, Vol. 5, Springer-Verlag, New York, 1998] for abelian categories and by Christensen and Frankland [On good morphisms of exact triangles, J. Pure Appl. Algebra 226 (2022), no. 3, 106846] for triangulated categories.

Details

Language :
English
ISSN :
23915455
Volume :
21
Issue :
1
Database :
Directory of Open Access Journals
Journal :
Open Mathematics
Publication Type :
Academic Journal
Accession number :
edsdoj.f927eaf7abcd471f8cf943deb6d739d9
Document Type :
article
Full Text :
https://doi.org/10.1515/math-2022-0570