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On the probable behaviour of some algorithms for finding the stability number of a graph

Published online by Cambridge University Press:  24 October 2008

B. Pittel
Affiliation:
Ohio State University, Columbus

Abstract

A class of f-driven algorithms due to Chvátal for finding the stability number of a graph are studied. It is shown that, for almost all graphs, the computation time grows subexponentially with n, the number of vertices. If, however, each edge exists with probability δ/n independently on other edges then asymptotically almost certainly the computation time is exponential. Still, for all large enough δ's, these algorithms perform noticeably better than a naive algorithm. The results are extended to random graphs with a fixed number of edges.

Type
Research Article
Copyright
Copyright © Cambridge Philosophical Society 1982

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