In this paper, we show that for any given two positive integers g and k with g > 3, there exists a graph (digraph) G with girth g and connectivity k. Applying this result, we give a negative answer to the problem proposed by M. Junger, G. Reinelt and W.R Pulleyblank (1985).
Algorithms for constructing graphs and digraphs with given valences and factors
β Scribed by D.J. Kleitman; D.L. Wang
- Publisher
- Elsevier Science
- Year
- 1973
- Tongue
- English
- Weight
- 942 KB
- Volume
- 6
- Category
- Article
- ISSN
- 0012-365X
No coin nor oath required. For personal study only.
β¦ Synopsis
Given a set of valences ( ui) such that { ui> and (vi-k} are both realizable as valences of graphs without loops or multiple edges, an explicit conslruction method is described for obtaining a graph with valences {ui] having a k-factor. A number of extensions of the result are obtained. Similar results are obtained for directed graphs.
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