Contracting an element from a cocircuit
| dc.creator | Hall, Rhiannon | |
| dc.creator | Mayhew, Dillon | |
| dc.date | 2008-01-14 | |
| dc.date | 2008-04-14 | |
| dc.date.accessioned | 2026-07-07T09:31:55Z | |
| dc.date.available | 2026-07-07T09:31:55Z | |
| dc.description | We consider the situation that M and N are 3-connected matroids such that |E(N)| > 3 and C* is a cocircuit of M with the property that M/y has an N-minor for some y in C*. We show that either there is an element x in C* such that si(M/x) or co(si(M/x)) is 3-connected with an N-minor, or there is a four-element fan of M that contains two elements of C* and an element x such that si(M/x) is 3-connected with an N-minor. | |
| dc.description | 23 pages, 1 figure. Minor changes to introduction | |
| dc.identifier | https://arxiv.org/abs/0801.2010 | |
| dc.identifier | http://arxiv.org/abs/0801.2010 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/158631 | |
| dc.subject | Combinatorics | |
| dc.subject | 05B35 | |
| dc.title | Contracting an element from a cocircuit | |
| dc.type | text |