For a graph G , let D ( G ) be the family of strong orientations of G , and define d แ ( G ) ร min{d(D)รD โ D(G)}, where d(D) is the diameter of the digraph D. In this paper, we evaluate the values of d แ (C 2n 1
Optimal orientations of products of paths and cycles
โ Scribed by K.M. Koh; E.G. Tay
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 656 KB
- Volume
- 78
- Category
- Article
- ISSN
- 0166-218X
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โฆ Synopsis
For a graph G, let 9(G) be the family of strong orientations of G, d(G) = min{d(D) / D t 9' (G)} and p(G) = d(G) -d(G), where d(G) and d(D) are the diameters of G and D respectively.
In this paper we show that p(G) = 0 if G is a Cartesian product of (I ) paths, and (2) paths and cycles, which satisfy some mild conditions.
๐ SIMILAR VOLUMES
For a graph G, let D(G) be the family of strong orientations of G. Define d แ (G) ร min {d(D)รD โ D(G)} and r(G) ร d แ (G) 0 d(G), where d(D) [respectively, d(G)] denotes the diameter of the digraph D (respectively, graph G). Let G 1 H denote the Cartesian product of the graphs G and H, and C p , th
Let G x H denote the Kronecker product of graphs G and H. Principal results are as follows: (a) If m is even and n-0 (mod 4), then one component of P,.+l x P,+1, and each component of each of CA x Pn+l, Pm+l x (7, and Cm x C, are edge decomposable into cycles of uniform length rs, where r and s are