ISSN 1234-3099 (print version)

ISSN 2083-5892 (electronic version)

Discussiones Mathematicae Graph Theory

IMPACT FACTOR 2018: 0.741

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Discussiones Mathematicae Graph Theory


Discussiones Mathematicae Graph Theory 23(1) (2003) 117-127
DOI: 10.7151/dmgt.1189


Amelie J. Berger

Department of Mathematics
Rand Afrikaans University
P.O. Box 524, Auckland Park, 2006 South Africa

Peter Mihók

Departement of Applied Mathematics and Informatics
Faculty of Economics, University of Technology
B. Nemcovej 32, 040 02 Košice, Slovakia
Mathematical Institute of Slovak Academy of Sciences
Gresákova 6, 040 01 Košice, Slovakia


An additive induced-hereditary property of graphs is any class of finite simple graphs which is closed under isomorphisms, disjoint unions and induced subgraphs. The set of all additive induced-hereditary properties of graphs, partially ordered by set inclusion, forms a completely distributive lattice. We introduce the notion of the join-decomposability number of a property and then we prove that the prime ideals of the lattice of all additive induced-hereditary properties are divided into two groups, determined either by a set of excluded join-irreducible properties or determined by a set of excluded properties with infinite join-decomposability number. We provide non-trivial examples of each type.

Keywords: hereditary graph property, prime ideal, distributive lattice, induced subgraphs

2000 Mathematics Subject Classification: 05C99, 06B10, 06D10.


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Received 12 July 2001
Revised 29 July 2002