Connected odd dominating sets in graphs

Yair Caro; William F. Klostermeyer; Raphael Yuster

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Displaying similar documents to “Connected odd dominating sets in graphs”

Structural Properties of Recursively Partitionable Graphs with Connectivity 2

Olivier Baudon, Julien Bensmail, Florent Foucaud, Monika Pilśniak (2017)

Discussiones Mathematicae Graph Theory

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A connected graph G is said to be arbitrarily partitionable (AP for short) if for every partition (n1, . . . , np) of |V (G)| there exists a partition (V1, . . . , Vp) of V (G) such that each Vi induces a connected subgraph of G on ni vertices. Some stronger versions of this property were introduced, namely the ones of being online arbitrarily partitionable and recursively arbitrarily partitionable (OL-AP and R-AP for short, respectively), in which the subgraphs induced by a partition...

Graphs without induced P₅ and C₅

Gabor Bacsó, Zsolt Tuza (2004)

Discussiones Mathematicae Graph Theory

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Zverovich [Discuss. Math. Graph Theory 23 (2003), 159-162.] has proved that the domination number and connected domination number are equal on all connected graphs without induced P₅ and C₅. Here we show (with an independent proof) that the following stronger result is also valid: Every P₅-free and C₅-free connected graph contains a minimum-size dominating set that induces a complete subgraph.

The distance between a graph and its complement

Bohdan Zelinka (1987)

Czechoslovak Mathematical Journal

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Conditional resolvability in graphs: a survey.

Saenpholphat, Varaporn, Zhang, Ping (2004)

International Journal of Mathematics and Mathematical Sciences

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On the p-domination number of cactus graphs

Mostafa Blidia, Mustapha Chellali, Lutz Volkmann (2005)

Discussiones Mathematicae Graph Theory

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Let p be a positive integer and G = (V,E) a graph. A subset S of V is a p-dominating set if every vertex of V-S is dominated at least p times. The minimum cardinality of a p-dominating set a of G is the p-domination number γₚ(G). It is proved for a cactus graph G that γₚ(G) ⩽ (|V| + |Lₚ(G)| + c(G))/2, for every positive integer p ⩾ 2, where Lₚ(G) is the set of vertices of G of degree at most p-1 and c(G) is the number of odd cycles in G.

Factors of claw-free graphs

Zbigniew Lonc, Zdeněk Ryjáček (1991)

Czechoslovak Mathematical Journal

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Connected domatic number in planar graphs

Bert L. Hartnell, Douglas F. Rall (2001)

Czechoslovak Mathematical Journal

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A dominating set in a graph $G$ is a connected dominating set of $G$ if it induces a connected subgraph of $G$ . The connected domatic number of $G$ is the maximum number of pairwise disjoint, connected dominating sets in $V (G)$ . We establish a sharp lower bound on the number of edges in a connected graph with a given order and given connected domatic number. We also show that a planar graph has connected domatic number at most 4 and give a characterization of planar graphs having connected domatic...

A property of canonical graphs.

Torgašev, Aleksandar (1991)

Publications de l'Institut Mathématique. Nouvelle Série

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Dominating bipartite subgraphs in graphs

Gábor Bacsó, Danuta Michalak, Zsolt Tuza (2005)

Discussiones Mathematicae Graph Theory

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A graph G is hereditarily dominated by a class 𝓓 of connected graphs if each connected induced subgraph of G contains a dominating induced subgraph belonging to 𝓓. In this paper we characterize graphs hereditarily dominated by classes of complete bipartite graphs, stars, connected bipartite graphs, and complete k-partite graphs.