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1998 | 18 | 2 | 183-195
Tytuł artykułu

On hereditary properties of composition graphs

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The composition graph of a family of n+1 disjoint graphs ${H_i:0 ≤ i ≤ n}$ is the graph H obtained by substituting the n vertices of H₀ respectively by the graphs H₁,H₂,...,Hₙ. If H has some hereditary property P, then necessarily all its factors enjoy the same property. For some sort of graphs it is sufficient that all factors ${H_i: 0 ≤ i ≤ n}$ have a certain common P to endow H with this P. For instance, it is known that the composition graph of a family of perfect graphs is also a perfect graph (B. Bollobas, 1978), and the composition graph of a family of comparability graphs is a comparability graph as well (M.C. Golumbic, 1980). In this paper we show that the composition graph of a family of co-graphs (i.e., P₄-free graphs), is also a co-graph, whereas for θ₁-perfect graphs (i.e., P₄-free and C₄-free graphs) and for threshold graphs (i.e., P₄-free, C₄-free and 2K₂-free graphs), the corresponding factors ${H_i:0 ≤ i ≤ n}$ have to be equipped with some special structure.
Kategorie tematyczne
Wydawca
Rocznik
Tom
18
Numer
2
Strony
183-195
Opis fizyczny
Daty
wydano
1998
otrzymano
1997-10-21
poprawiono
1998-05-04
Twórcy
  • Department of Computer Systems, Center for Technological Education, Affiliated with Tel-Aviv University, 52 Golomb St., P.O. Box 305, Holon 58102, Israel
  • Department of Computer Systems, Center for Technological Education, Affiliated with Tel-Aviv University, 52 Golomb St., P.O. Box 305, Holon 58102, Israel
Bibliografia
  • [1] B. Bollobás, Extremal graph theory (Academic Press, London, 1978).
  • [2] B. Bollobás and A.G. Thomason, Hereditary and monotone properties of graphs, in: R.L. Graham and J. Nešetřil, eds., The Mathematics of Paul Erdős, II, Algorithms and Combinatorics 14 (Springer-Verlag, 1997) 70-78.
  • [3] M. Borowiecki and P. Mihók, Hereditary properties of graphs, in: V.R. Kulli ed., Advances in Graph Theory (Vishwa Intern. Publication, Gulbarga,1991) 41-68.
  • [4] M. Borowiecki, I. Broere, M. Frick, P. Mihók, G. Semanišin, A Survey of Hereditary Properties of Graphs, Discussiones Mathematicae Graph Theory 17 (1997) 5-50, doi: 10.7151/dmgt.1037.
  • [5] P. Borowiecki and J. Ivančo, P-bipartitions of minor hereditary properties, Discussiones Mathematicae Graph Theory 17 (1997) 89-93, doi: 10.7151/dmgt.1041.
  • [6] V. Chvátal and P.L. Hammer, Set-packing and threshold graphs, Res. Report CORR 73-21, University Waterloo, 1973.
  • [7] S. Foldes and P.L. Hammer, Split graphs, in: F. Hoffman et al., eds., Proc. 8th Conf. on Combinatorics, Graph Theory and Computing (Louisiana State Univ., Baton Rouge, Louisiana, 1977) 311-315.
  • [8] M.C. Golumbic, Trivially perfect graphs, Discrete Math. 24 (1978) 105-107, doi: 10.1016/0012-365X(78)90178-4.
  • [9] M.C. Golumbic, Algorithmic graph theory and perfect graphs (Academic Press, London, 1980).
  • [10] J.L. Jolivet, Sur le joint d' une famille de graphes, Discrete Math. 5 (1973) 145-158, doi: 10.1016/0012-365X(73)90106-4.
  • [11] N.V.R. Mahadev and U.N. Peled, Threshold graphs and related topics (North-Holland, Amsterdam, 1995).
  • [12] E. Mandrescu, Triangulated graph products, Anal. Univ. Galatzi (1991) 37-44.
  • [13] K.R. Parthasarathy, S.A. Choudum and G. Ravindra, Line-clique cover number of a graph, Proc. Indian Nat. Sci. Acad., Part A 41 (3) (1975) 281-293.
  • [14] U.N. Peled, Matroidal graphs, Discrete Math. 20 (1977) 263-286.
  • [15] A. Pnueli, A. Lempel and S. Even, Transitive orientation of graphs and identification of permutation graphs, Canad. J. Math. 23 (1971) 160-175, doi: 10.4153/CJM-1971-016-5.
  • [16] G. Ravindra and K.R. Parthasarathy, Perfect Product Graphs, Discrete Math. 20 (1977) 177-186, doi: 10.1016/0012-365X(77)90056-5.
  • [17] G. Sabidussi, The composition of graphs, Duke Math. J. 26 (1959) 693-698, doi: 10.1215/S0012-7094-59-02667-5.
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.bwnjournal-article-doi-10_7151_dmgt_1074
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