Homology, Homotopy and Applications
Volume 23 (2021)
Strong version of Snake Lemma in exact categories
Pages: 151 – 163
We prove the strong version of Snake Lemma, and its equivalence to the other two versions of Snake Lemma, in weakly idempotent complete exact categories.
strong version of Snake Lemma, (weakly idempotent complete) exact category, admissible morphism, morphism category, generalized abelian category, Gorenstein-projective module
2010 Mathematics Subject Classification
18C10, 18E10, 18E20, 18G50
Supported by the NNSFC (National Natural Science Foundation of China) Grant No. 11971304.
Received 7 May 2020
Received revised 14 October 2020
Accepted 23 October 2020
Published 3 November 2021