Natural Central Extensions of Groups
| dc.creator | Liedtke, Christian | |
| dc.date | 2005-05-13 | |
| dc.date | 2007-09-13 | |
| dc.date.accessioned | 2026-07-07T09:39:44Z | |
| dc.date.available | 2026-07-07T09:39:44Z | |
| dc.description | Given a group $G$ and an integer $n\geq2$ we construct a new group $\tilde{\cal K}(G,n)$. Although this construction naturally occurs in the context of finding new invariants for complex algebraic surfaces, it is related to the theory of central extensions and the Schur multiplier. A surprising application is that Abelian groups of odd order possess naturally defined covers that can be computed from a given cover by a kind of warped Baer sum. | |
| dc.description | 13 pages, completely rewritten version | |
| dc.identifier | https://arxiv.org/abs/math/0505285 | |
| dc.identifier | http://arxiv.org/abs/math/0505285 | |
| dc.identifier | Groups Geom. Dyn. 2, 245-261 (2008) | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/161286 | |
| dc.subject | Group Theory | |
| dc.subject | Algebraic Geometry | |
| dc.subject | 20E22; 20C25 | |
| dc.title | Natural Central Extensions of Groups | |
| dc.type | text |