Monoidal model structures over infinite groups
Representation Theory
2025-10-28 v2
Abstract
The stable category of modules over the algebra of a finite group with coefficients in a field is a compactly generated tensor triangulated category, that has been studied extensively in representation theory. In this paper, we provide a plethora of infinite groups G, for which the category of kG-modules (where k is a commutative coherent ring of finite global dimension) admits a monoidal model structure, in the sense of Hovey, whose associated homotopy category is a compactly generated tensor triangulated category. To that end, we use a technique recently introduced by the authors, which is based on Kropholler's operation LH and the second author's operation {\Phi}.
Cite
@article{arxiv.2510.08195,
title = {Monoidal model structures over infinite groups},
author = {Ioannis Emmanouil and Olympia Talelli},
journal= {arXiv preprint arXiv:2510.08195},
year = {2025}
}