𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Covering Graphs: The Covering Problem Solved

✍ Scribed by Yair Caro; Raphael Yuster


Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
238 KB
Volume
83
Category
Article
ISSN
0097-3165

No coin nor oath required. For personal study only.

✦ Synopsis


For every fixed graph H, we determine the H-covering number of K n , for all n>n 0 (H ). We prove that if h is the number of edges of H, and gcd(H )=d is the greatest common divisor of the degrees of H, then there exists n 0 =n 0 (H ), such that for all n>n 0 ,

Our main tool in proving this result is the deep decomposition result of Gustavsson.


πŸ“œ SIMILAR VOLUMES


Covering Regular Graphs
✍ Jan Kratochvı́l; Andrzej Proskurowski; Jan Arne Telle πŸ“‚ Article πŸ“… 1997 πŸ› Elsevier Science 🌐 English βš– 365 KB

A covering projection from a graph G onto a graph H is a ``local isomorphism'': a mapping from the vertex set of G onto the vertex set of H such that, for every v # V(G), the neighborhood of v is mapped bijectively onto the neighborhood (in H ) of the image of v. We investigate two concepts that con

The gradual covering problem
✍ Zvi Drezner; George O. Wesolowsky; Tammy Drezner πŸ“‚ Article πŸ“… 2004 πŸ› John Wiley and Sons 🌐 English βš– 106 KB
Packing and covering dense graphs
✍ Noga Alon; Yair Caro; Raphael Yuster πŸ“‚ Article πŸ“… 1998 πŸ› John Wiley and Sons 🌐 English βš– 498 KB πŸ‘ 1 views
Mixed covering arrays on graphs
✍ Karen Meagher; Lucia Moura; Latifa Zekaoui πŸ“‚ Article πŸ“… 2007 πŸ› John Wiley and Sons 🌐 English βš– 169 KB

## Abstract Covering arrays have applications in software, network and circuit testing. In this article, we consider a generalization of covering arrays that allows mixed alphabet sizes as well as a graph structure that specifies the pairwise interactions that need to be tested. Let __k__ and __n__

Automorphism Groups of Covering Graphs
✍ Norbert Seifter; Vladimir I. Trofimov πŸ“‚ Article πŸ“… 1997 πŸ› Elsevier Science 🌐 English βš– 226 KB

For a large class of finite Cayley graphs we construct covering graphs whose automorphism groups coincide with the groups of lifted automorphisms. As an application we present new examples of 1Γ‚2-transitive and 1-regular graphs.