Support varieties for modules over stacked monomial algebras
| dc.creator | Furuya, Takahiko | |
| dc.creator | Snashall, Nicole | |
| dc.date | 2009-03-30 | |
| dc.date.accessioned | 2026-07-07T12:58:08Z | |
| dc.date.available | 2026-07-07T12:58:08Z | |
| dc.description | In this paper we give necessary and sufficient conditions for the variety of a simple module over a (D,A)-stacked monomial algebra to be nontrivial. This class of algebras was introduced in [Green and Snashall, The Hochschild cohomology ring modulo nilpotence of a stacked monomial algebra, Colloq. Math. 105 (2006), 233-258] and generalizes Koszul and D-Koszul monomial algebras. As a consequence we show that if the variety of every simple module over such an algebra is nontrivial then the algebra is D-Koszul. We give examples of (D,A)-stacked monomial algebras which are not selfinjective but nevertheless satisfy the finiteness conditions of [Erdmann, Holloway, Snashall, Solberg and Taillefer, Support varieties for selfinjective algebras, K-Theory 33 (2004), 67-87] and so some of the group-theoretic properties of support varieties have analogues in this more general setting and we can characterize all modules with trivial variety. | |
| dc.description | 13 pages | |
| dc.identifier | https://arxiv.org/abs/0903.5170 | |
| dc.identifier | http://arxiv.org/abs/0903.5170 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/225139 | |
| dc.subject | Representation Theory | |
| dc.subject | K-Theory and Homology | |
| dc.subject | 16E40, 16S37 | |
| dc.title | Support varieties for modules over stacked monomial algebras | |
| dc.type | text |