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Almost all Berge Graphs are Perfect

Published online by Cambridge University Press:  12 September 2008

Hans Jürgen Prömel
Affiliation:
Institut für Diskrete Mathematik, Universität Bonn, Nassestr. 2, 5300 Bonn, Germany
Angelika Steger
Affiliation:
Institut für Diskrete Mathematik, Universität Bonn, Nassestr. 2, 5300 Bonn, Germany

Abstract

Let Per f(n) denote the set of all perfect graphs on n vertices and let Berge(n) denote the set of all Berge graphs on n vertices. The strong perfect graph conjecture states that Per f(n) = Berge(n) for all n. In this paper we prove that this conjecture is at least asymptotically true, i.e. we show that

Type
Research Article
Copyright
Copyright © Cambridge University Press 1992

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References

[1] Bruijn, N. G. De. Asymptotic Methods in Analysis. North-Holland Publishing, Amsterdam, 1958.Google Scholar
[2] Erdős, P., Kleitman, D. J. and Rothschild, B. L.. Asymptotic enumeration of Kn—free graphs. In International Colloquium on Combinatorial Theory. Atti dei Convegni Lincei 17, Vol. 2, Rome, pp. 1927, (1976).Google Scholar
[3] Hayward, R.. Weakly triangulated graphs. J. Combin. Theory, Series B 39 pp. 200209, (1985).CrossRefGoogle Scholar
[4] Kleitman, D. J. and Rothschild, B. L.. Asymptotic enumeration of partial orders on a finite set. Trans. Amer. Math. Soc. 205 pp. 205220, (1975).CrossRefGoogle Scholar
[5] Kolaitis, Ph.G., Prömel, H. J. and Rothschild, B. L.. K1+1-free graphs: asymptotic structure and a 0–1–law. Trans. Amer. Math. Soc. 303 pp. 637671, (1987).Google Scholar
[6] Prömel, H. J. and Steger, A.. Excluding induced subgraphs: quadrilaterals. Random Struct. Alg. 2, pp. 5571, (1991).CrossRefGoogle Scholar
[7] Prömel, H. J. and Steger, A.. Excluding induced subgraphs III: a general asymptotic. Random Struct. Alg. 3, pp. 1931, (1992).CrossRefGoogle Scholar
[8] Prömel, H. J. and Steger, A.. Random l-colorable graphs. Forschungsinstitut für Diskrete Mathe-matik, Universität Bonn, 1992.Google Scholar
[9] Szemerédi, E.. Regular partitions of graphs. In Problémes en combinatoire et théorie des graphes C.N.R.S., Paris, pp. 399401, (1978).Google Scholar