If a grrrph G hao edge connectivity A then the vertex fiat ha a partition V(a) = U U W ash that 61 esntainti exactly A edgea from U to W, Wen~se if Qo ia a maximal graph of order n and edge connectivity A than C$, is sbtctined from the dkjsint union of two complete oubgragh8, B,[U] and &T,[ Wg, by a
On graphs with equal edge-connectivity and minimum degree
โ Scribed by Donald L. Goldsmith; Arthur T. White
- Publisher
- Elsevier Science
- Year
- 1978
- Tongue
- English
- Weight
- 599 KB
- Volume
- 23
- Category
- Article
- ISSN
- 0012-365X
No coin nor oath required. For personal study only.
โฆ Synopsis
It was proved by Chartrand f hat if G is a graph of order p for which the minimum degree is at least [&I, then the edge-connectivity of G equals the minimum degree of G. It is shown here that one may allow vertices of degree less than $p and still obtain the same conclusion, provided the degrees are essentially "balanced"; that is, for each vertex with degree less th;i; $p there is an associated vertex with degree sufficiently greater than $p.
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