Group class operations and homological conditions

Fuente: arXiv
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Auteurs principaux: Emmanouil, Ioannis, Ren, Wei
Format: Preprint
Publié: 2025
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author Emmanouil, Ioannis
Ren, Wei
author_facet Emmanouil, Ioannis
Ren, Wei
contents Kropholler's operation ${\scriptstyle{\bf LH}}$ and Talelli's operation $Φ$ can be often used to formally enlarge the class of available examples of groups that satisfy certain homological conditions. In this paper, we employ this enlargement technique regarding two specific homological conditions. We thereby demonstrate the abundance of groups that (a) have virtually Gorenstein group algebras, as defined by Beligiannis and Reiten, and (b) satisfy Moore's conjecture on the relation between projectivity and relative projectivity, that was studied by Chouinard, Aljadeff, Cornick, Ginosar, Kropholler and Meir.
format Preprint
id arxiv_https___arxiv_org_abs_2505_00513
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Group class operations and homological conditions
Emmanouil, Ioannis
Ren, Wei
Group Theory
K-Theory and Homology
Kropholler's operation ${\scriptstyle{\bf LH}}$ and Talelli's operation $Φ$ can be often used to formally enlarge the class of available examples of groups that satisfy certain homological conditions. In this paper, we employ this enlargement technique regarding two specific homological conditions. We thereby demonstrate the abundance of groups that (a) have virtually Gorenstein group algebras, as defined by Beligiannis and Reiten, and (b) satisfy Moore's conjecture on the relation between projectivity and relative projectivity, that was studied by Chouinard, Aljadeff, Cornick, Ginosar, Kropholler and Meir.
title Group class operations and homological conditions
topic Group Theory
K-Theory and Homology
url https://arxiv.org/abs/2505.00513