A graph is said to be 2-extendable if any two edges which do not have a common vertex are contained in a l-factor of the graph. In this paper, we show that the generalized Petersen graph GP(n, k) is 2-extandable for all n # 2k or 3k whenever k 2 3, as conjectured by Cammack and Schrag.
On the 2-extendability of the generalized Petersen graphs
β Scribed by Gerald Schrag; Larry Cammack
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 731 KB
- Volume
- 78
- Category
- Article
- ISSN
- 0012-365X
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β¦ Synopsis
A graph G is n-extendable if it is connected, contains a set of rr independent edges and every set of n-independent edges extends to (i.e. is a subset of) a perfect matching. Combining the results of this and previous papers we answer the question of 2-extendability for all the generalized Petersen graphs G(n, k) with k s 7 as well as for all G(n, k) with n a 3k + 5.
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