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Minimum independent generalized t-degree and independence number in K1,r+1-free graphs

✍ 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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✦ 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.


πŸ“œ SIMILAR VOLUMES


On the independence number in K1, r+1-fr
✍ ZdenΔ›k RyjÑček; Ingo Schiermeyer πŸ“‚ Article πŸ“… 1995 πŸ› Elsevier Science 🌐 English βš– 353 KB

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.