Minimum independent generalized t-degree and independence number in K1,r+1-free graphs
β Scribed by O. Favaron; Y. Redouane
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 448 KB
- Volume
- 165-166
- Category
- Article
- ISSN
- 0012-365X
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β¦ Synopsis
The minimum independent generalized t-degree of a graph G = (V,E) is ut = min{ IN(H H is an independent set of t vertices of G}, with N(H) = UxtH N(x). In a KI,~+I -free graph, we give an upper bound on u! in terms of r and the independence number CI of G. This generalizes already known results on u2 in KI,,+I-free graphs and on U, in KI,x-free graphs.
π SIMILAR VOLUMES
In this paper we use the degree sequence, order, size and vertex connectivity of a K 1,,+ 1 -free graph or of an almost claw-free graph to obtain several upper bounds on its independence number. We also discuss the sharpness of these results.