Title
Disjoint cocircuits in matroids with large rank
Abstract
We prove that, for any positive integers n, k and q, there exists an integer R such that, if M is a matroid with no M(Kn)- or U2,q+2-minor, then either M has a collection of k disjoint cocircuits or M has rank at most R. Applied to the class of cographic matroids, this result implies the edge-disjoint version of the Erdös-Pósa Theorem.
Year
DOI
Venue
2003
10.1016/S0095-8956(02)00010-2
J. Comb. Theory, Ser. B
Keywords
Field
DocType
k disjoint cocircuits,cographic matroids,edge-disjoint version,sa theorem,positive integers n,large rank,integer r,05b35
Matroid,Integer,Discrete mathematics,Combinatorics,Disjoint sets,Existential quantification,Graphic matroid,Mathematics
Journal
Volume
Issue
ISSN
87
2
Journal of Combinatorial Theory, Series B
Citations 
PageRank 
References 
8
2.13
0
Authors
3
Name
Order
Citations
PageRank
James F. Geelen11019.62
A. M. H. Gerards227836.47
Geoff Whittle347157.57