Pseudo-Galois Extensions and Hopf Algebroids
| dc.creator | Kadison, Lars | |
| dc.date | 2005-08-22 | |
| dc.date | 2006-08-21 | |
| dc.date.accessioned | 2026-07-07T06:42:49Z | |
| dc.date.available | 2026-07-07T06:42:49Z | |
| dc.description | A pseudo-Galois extension is shown to be a depth two extension. Studying its left bialgebroid, we construct an enveloping Hopf algebroid for the semi-direct product of groups, or more generally involutive Hopf algebras, and their module algebras. It is a type of cofibered sum of two inclusions of the Hopf algebra into the semi-direct product and its derived right crossed product. Van Oystaeyen and Panaite observe that this Hopf algebroid is non-trivially isomorphic to a Connes-Moscovici Hopf algebroid, which raises interesting comparative questions. | |
| dc.description | 16 pages | |
| dc.identifier | https://arxiv.org/abs/math/0508411 | |
| dc.identifier | http://arxiv.org/abs/math/0508411 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/102185 | |
| dc.subject | Quantum Algebra | |
| dc.subject | Rings and Algebras | |
| dc.subject | 13B05, 16W30, 20L05, 81R50 | |
| dc.title | Pseudo-Galois Extensions and Hopf Algebroids | |
| dc.type | text |