Let G = ( V , A ) be a digraph with diameter D # 1. For a given integer 2 5 t 5 D , the t-distance connectivity K ( t ) of G is the minimum cardinality of an z --+ y separating set over all the pairs of vertices z, y which are a t distance d(z, y) 2 t. The t-distance edge connectivity X ( t ) of G i
On the distance connectivity of graphs and digraphs
✍ Scribed by M.A. Fiol; J. Fàbrega
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 475 KB
- Volume
- 125
- Category
- Article
- ISSN
- 0012-365X
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✦ Synopsis
Let G=( V, E) be a digraph with diameter D # 1. For a given integer 1 t. The t-distance edge-connectivity of G is defined analogously. This paper studies some results on the distance connectivities of digraphs and bipartite digraphs. These results are given in terms of the parameter I, which can be thought of as a generalization of the girth of a graph. For instance, it is proved that G is maximally connected iff either 0<21-1 or ~(21) > 6. As a corollary, similar results for (undirected) graphs are derived.
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