## On the Number of Discernible On the Number of Discernible Colors Colours I was surprised that, in their study of the number of dis-The authors are grateful to Cal McCamy for his timely cernible colors, Pointer and Attridge 1 missed the early response to their original article. Neither they, nor
On the number of shredders
✍ Scribed by Jord�n, Tibor
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 183 KB
- Volume
- 31
- Category
- Article
- ISSN
- 0364-9024
No coin nor oath required. For personal study only.
✦ Synopsis
A subset S of k vertices in a k-connected graph G is a shredder, if G -S has at least three components. We show that if G has n vertices, then the number of shredders is at most n, which was conjectured by Cheriyan and Thurimella [
📜 SIMILAR VOLUMES
Colorings of disk graphs arise in the study of the frequency-assignment problem in broadcast networks. Motivated by the observations that the chromatic number of graphs modeling real networks hardly exceeds their clique number, we examine the related properties of the unit disk (UD) graphs and their
Given positive integers k and l, let R(k, l) denote the class of interconnection networks so that for any k / 1 distinct nodes x, y 1 , y 2 , . . . , y k there exist k node-disjoint paths (except at x) of length at most l from x to y 1 , y 2 , . . . , y k , respectively. The Rabin number of a networ
In a 3-connected plane graph, each pair of faces meet at at most either a vertex or an edge. Zha considered 3-connected graphs embedded on the projective plane, torus, and Klein bottle, showing that they meet at at most two, at most four, and a t most four vertices or edges, respectively, and demons