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Edge Partition Properties of Graphs

Published online by Cambridge University Press:  20 November 2018

C. Ward Henson*
Affiliation:
Duke University, Durham, North Carolina
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Erdös and Hajnal [1] have introduced an edge partition relation for graphs

(1)

which means that whenever the edges of G are separated into two sets, E1 and E2, there exists a subgraph G’ of G such that G’ is isomorphic to Hi and the edges of G’ are all in Ei. for i = 1 or 2. A class of graphs has the G-R (Galvin-Ramsey) property [2] if for each H in there exists a G in which satisfies G→(H,H).

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 1973

References

1. Erdös, P. and Hajnal, A., On decomposition of graphs, Acta Math. Acad. Sci. Hungar. 18 (1967), 359377.Google Scholar
2. Erdös, P. and Hajnal, A., Problems and results infinite and infinite combinatorial analysis, Ann. of New York Acad, of Sci. 175 (1970), 115124.Google Scholar
3. Ghouila-Houri, A., Charactérisation des graphs non orientés dont on peut orienter les aretes de manière à obtenir le graph d'une relation d'ordre, C.R. Acad. Sci. Paris, Sér. A-B 254 (1962), 13701371.Google Scholar
4. Gilmore, P. C. and Hoffman, A. J., A characterization of comparability graphs and of interval graphs, Can. J. Math. 16 (1964), 539548.Google Scholar