نتایج جستجو برای: directed domination

تعداد نتایج: 163565  

2004
Magdalena Lemańska

Two new domination parameters for a connected graph G: the weakly convex domination number of G and the convex domination number of G are introduced. Relations between these parameters and the other domination parameters are derived. In particular, we study for which cubic graphs the convex domination number equals the connected domination number.

Journal: :Graphs and Combinatorics 2015
Michael A. Henning Sandi Klavzar Douglas F. Rall

In this paper, we continue the study of the domination game in graphs introduced by Brešar, Klavžar, and Rall [SIAM J. Discrete Math. 24 (2010) 979–991]. We study the total version of the domination game and show that these two versions differ significantly. We present a key lemma, known as the Total Continuation Principle, to compare the Dominator-start total domination game and the Staller-st...

Journal: :Diglosia 2023

This study aims to dismantle the strengthening of patriarchal culture and its impact on women’s position in adaptation Sitti Nurbaya novel by Marah Rusli musical series directed Naya Anindita Venytha Yoshianthini broadcast Indonesia Kaya Youtube channel. The research method used is analytical descriptive applying concept ecranisation, a feminist approach aspects musicality theater, addition dig...

Journal: :CoRR 2013
Pradip Debnath

In this article we give a new definition of direct product of two arbitrary fuzzy graphs. We define the concepts of domination and total domination in this new product graph. We obtain an upper bound for the total domination number of the product fuzzy graph. Further we define the concept of total α-domination number and derive a lower bound for the total domination number of the product fuzzy ...

Journal: :Discrete Applied Mathematics 2015
David Blessing Katie Johnson Christie Mauretour Erik Insko

The domination number of a graph G = (V,E) is the minimum cardinality of any subset S ⊂ V such that every vertex in V is in S or adjacent to an element of S. Finding the domination numbers of m by n grids was an open problem for nearly 30 years and was finally solved in 2011 by Goncalves, Pinlou, Rao, and Thomassé. Many variants of domination number on graphs, such as double domination number a...

Journal: :Discrete Applied Mathematics 2020

Journal: :Discussiones Mathematicae Graph Theory 2006
Michael D. Plummer

In this paper, we survey some new results in four areas of domination in graphs, namely: (1) the toughness and matching structure of graphs having domination number 3 and which are “critical” in the sense that if one adds any missing edge, the domination number falls to 2; (2) the matching structure of graphs having domination number 3 and which are “critical” in the sense that if one deletes a...

2016
Magda Dettlaff Joanna Raczek Ismael G. Yero Dalibor Fronček

Given a graph G = (V, E), the subdivision of an edge e = uv ∈ E(G) means the substitution of the edge e by a vertex x and the new edges ux and xv. The domination subdivision number of a graph G is the minimum number of edges of G which must be subdivided (where each edge can be subdivided at most once) in order to increase the domination number. Also, the domination multisubdivision number of G...

Journal: :Electronic Notes in Discrete Mathematics 2016
Santiago Canales Irene Castro Gregorio Hernández-Peñalver Ana Mafalda Martins

In this article we study some variants of the domination concept attending to the connectivity of the subgraph generated by the dominant set. This study is restricted to maximal outerplanar graphs. We establish tight combinatorial bounds for connected domination, semitotal domination, independent domination and weakly connected domination for any n-vertex maximal outerplaner graph.

Journal: :Discrete Applied Mathematics 2012
Gerard J. Chang Paul Dorbec Mickaël Montassier André Raspaud

In this paper, we introduce the concept of k-power domination which is a common generalization of domination and power domination. We extend several known results for power domination to k-power domination. Concerning the complexity of the k-power domination problem, we first show that deciding whether a graph admits a k-power dominating set of size at most t is NP-complete for chordal graphs a...

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