Title
A Tight Bound for Minimal Connectivity.
Abstract
For minimally $k$-connected graphs on $n$ vertices, Mader proved a tight lower bound for the number $|V_k|$ of vertices of degree $k$ in dependence on $n$ and $k$. Oxley observed 1981 that in many cases a considerably better bound can be given if $m := |E|$ is used as additional parameter, i.e. in dependence on $m$, $n$ and $k$. It was left open to determine whether Oxleyu0027s bound is best possible. show that this is not the case, but propose a closely related bound that deviates from Oxleyu0027s long-standing one only for small values of $m$. We prove that this new bound is best possible. The bound contains Maderu0027s bound as special case.
Year
Venue
Field
2016
arXiv: Combinatorics
Discrete mathematics,Graph,Combinatorics,Vertex (geometry),Upper and lower bounds,Mathematics,Special case
DocType
Volume
Citations 
Journal
abs/1603.09281
0
PageRank 
References 
Authors
0.34
0
1
Name
Order
Citations
PageRank
Jens M. Schmidt101.69