
ON LEFT QUASI-EXACT SEQUENCES
Author(s) -
Siti Muawanah,
Indah Emilia Wijayanti
Publication year - 2019
Publication title -
jurnal matematika thales
Language(s) - English
Resource type - Journals
ISSN - 2715-1891
DOI - 10.22146/jmt.44643
Subject(s) - homomorphism , functor , mathematics , mathematical proof , exact sequence , pure mathematics , discrete mathematics , algebra over a field , geometry
The aim of this paper is to bring together the properties of quasi-exact sequences and homomorphism functors. It is of interest to know whether the left quasi-exact sequences have some interesting properties related to the functors and vice versa. Moreover, we also define the dualization of left quasi-exact sequences, i.e. right quasi-coexact sequences. Our proofs show that the quasi-exactness of sequences is preserved by any homomorphism functors.