Corrigendum to "$m$-Periodic Gorenstein objects" [J. Algebra 621 (2023)]
Abstract
Let be a GP-admissible pair and be a GI-admissible pair of classes of objects in an abelian category , and consider the class of -periodic -Gorenstein projective objects, where and . We claimed in \cite[Lem. 8.1]{HMP2023m} that the -Gorenstein injective dimension of is bounded by the -Gorenstein injective dimension of , provided that: (1) is closed under direct summands, (2) , and (3) every object in admits a -acyclic -coresolution. These conditions are their duals are part of what we called ``Setup 1''. Moreover, if we replace by the class of -Gorenstein projective objects, the resulting inequality is claimed to be true under a set of conditions named ``Setup 2''. The proof we gave for the claims and is incorrect, and the purpose of this note is to exhibit a corrected proof of the first inequality, under the additional assumption that every object in has finite injective dimension relative to . Setup 2 is no longer required, and as a result the second inequality was removed. We also fix those results in \S \ 8 of \cite{HMP2023m} affected by Lemma 8.1, and comment some applications and examples.
Cite
@article{arxiv.2403.10525,
title = {Corrigendum to "$m$-Periodic Gorenstein objects" [J. Algebra 621 (2023)]},
author = {Mindy Y. Huerta and Octavio Mendoza and M. A. Pérez},
journal= {arXiv preprint arXiv:2403.10525},
year = {2024}
}
Comments
10 pages. arXiv admin note: text overlap with arXiv:2207.00075