Abstract
A paired-dominating set of a graph G is a dominating set of vertices whose induced subgraph has a perfect matching, while the paired-domination number, denoted by γ pr (G), is the minimum cardinality of a paired-dominating set in G. In this paper we investigate the paired-domination number in claw-free graphs. Specifically, we show that γ pr (G) ≤ (3n − 1)/5 if G is a connected claw-free graph of order n with minimum degree at least three and that this bound is sharp.
Similar content being viewed by others
References
Chen L., Lu C.H., Zeng Z.B.: Labelling algorithms for paired-domination problems in block and interval graphs. J. Combin. Optim. 19, 457–470 (2010)
Chen X.G., Sun L., Xing H.M.: Paired-domination numbers of cubic graphs (Chinese). Acta Math. Sci. Ser. A Chin. Ed. 27, 166–170 (2007)
Chen X.G., Wai C.S., Wai H.C.: Upper bounds on the paired-domination number. Appl. Math. Lett. 21, 1194–1198 (2008)
Cheng T.C.E., Kang L.Y., Ng C.T.: Paired domination on interval and circular-arc graphs. Discrete Appl. Math. 155, 2077–2086 (2007)
Dorbec P., Henning M.A.: Upper paired-domination in claw-free graphs. J. Combin. Optim. 22, 235–251 (2011)
Dorbec P., Gravier S., Henning M.A.: Paired-domination in generalized claw-free graphs. J. Combin. Optim. 14, 1–7 (2007)
Favaron O., Henning M.A.: Paired domination in claw-free cubic graphs. Graphs Combin. 20, 447–456 (2004)
Goddard W., Henning M.A.: A characterization of cubic graphs with paired-domination number three-fifths their order. Graphs Combin. 25, 675–692 (2009)
Haynes T.W., Hedetniemi S.T., Slater P.J.: Fundamentals of Domination in Graphs. Marcel Dekker, New York (1998)
Haynes T.W., Hedetniemi S.T., Slater P.J.: Domination in Graphs: Advanced Topics. Marcel Dekker, New York (1998)
Haynes T.W., Slater P.J.: Paired-domination in graphs. Networks 32, 199–206 (1998)
Haynes T.W., Slater P.J.: Paired-domination and the paired-domatic number. Congr. Numer. 109, 65–72 (1995)
Henning M.A.: Graphs with large paired-domination number. J. Combin. Optim. 13, 61–78 (2007)
Henning M.A., Plummer M.D.: Vertices contained in all or in no minimum paired-dominating set of a tree. J. Combin. Optim. 10, 283–294 (2005)
Huang S.W., Shan E.F.: A note on the upper bound for the paired-domination number of a graph with minimum degree at least two. Networks 57, 115–116 (2011)
Qiao H., Kang L.Y., Cardei M., Du D.Z.: Paired-domination of trees. J. Global Optim. 25, 43–54 (2003)
Author information
Authors and Affiliations
Corresponding author
Additional information
This research was partially supported by the National Nature Science Foundation of China (Nos. 11171207, 10971131, 91130032).
Rights and permissions
About this article
Cite this article
Huang, S., Kang, L. & Shan, E. Paired-Domination in Claw-Free Graphs. Graphs and Combinatorics 29, 1777–1794 (2013). https://doi.org/10.1007/s00373-012-1224-5
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00373-012-1224-5