We show that the digraphs proposed independently by lmase and Itoh, and Reddy, Radhan and Kuhl to minimize diameters essentially retain all the nice properties of de Bruijn digraphs and yet are applicable to any number of nodes. In particular we give results on the number of loops, the link connecti
On the domination numbers of generalized de Bruijn digraphs and generalized Kautz digraphs
β Scribed by Yosuke Kikuchi; Yukio Shibata
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 94 KB
- Volume
- 86
- Category
- Article
- ISSN
- 0020-0190
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β¦ Synopsis
This work deals with the domination numbers of generalized de Bruijn digraphs and generalized Kautz digraphs. Dominating sets for digraphs are not familiar compared with dominating sets for undirected graphs. Whereas dominating sets for digraphs have more applications than those for undirected graphs. We construct dominating sets of generalized de Bruijn digraphs where obtained dominating sets have some qualifications. For generalized Kautz digraphs, there is a minimum dominating set in those constructed dominating sets.
π SIMILAR VOLUMES
In this paper, we count small cycles in generalized de Bruijn digraphs. Let n Γ pd h , where d Γ / p, and g l Γ gcd(d l 0 1, n). We show that if p Γ΅ d 3 and k Β°ο£°log d nο£» / 1, or p ΓΊ d 3 and k Β°h / 3, then the number of cycles of length k in a generalized de Bruijn digraph G B (n, d) is given by 1/ k
## Abstract Motivated by the problem of designing large packet radio networks, we show that the Kautz and de Bruijn digraphs with inβ and outdegree __d__ have arcβchromatic index __2d__. In order to do this, we introduce the concept of even 1βfactorizations. An even 1βfactor of a digraph is a spann