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Related papers: $k$-Dependence and Domination in Kings Graphs

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Motivated by the work on the domination number of directed de Bruijn graphs and some of its generalizations, in this paper we introduce a natural generalization of de Bruijn graphs (directed and undirected), namely $t$-constrained de Bruijn…

Combinatorics · Mathematics 2023-06-22 Tiziana Calamoneri , Angelo Monti , Blerina Sinaimeri

We show that every n-vertex cubic graph with girth at least g have domination number at most 0.299871n+O(n/g)<3n/10+O(n/g).

Combinatorics · Mathematics 2009-07-08 Daniel Kral , Petr Skoda , Jan Volec

The \emph{domination subdivision number} sd$(G)$ of a graph $G$ is the minimum number of edges that must be subdivided (where an edge can be subdivided at most once) in order to increase the domination number of $G$. It has been shown…

Combinatorics · Mathematics 2013-10-15 Magda Dettlaff , Joanna Raczek , Jerzy Topp

We introduce a domination polynomial of a graph G. The domination polynomial of a graph G of order n is the polynomial D(G, x) =\sum_{i=1}^n d(G, i)x^i, where d(G, i) is the number of dominating sets of G of size i. We obtain some…

Combinatorics · Mathematics 2009-05-15 Saeid Alikhani , Yee-hock Peng

The domination game is played on a graph G. Vertices are chosen, one at a time, by two players Dominator and Staller. Each chosen vertex must enlarge the set of vertices of G dominated to that point in the game. Both players use an optimal…

Combinatorics · Mathematics 2013-03-14 Bostjan Bresar , Sandi Klavzar , Douglas F. Rall

A vertex u of a graph t-dominates a vertex v if there are at most t vertices different from u,v that are adjacent to v and not to u; and a graph is t-dominating if for every pair of distinct vertices, one of them t-dominates the other. Our…

Combinatorics · Mathematics 2019-03-01 Bruce Reed , Alex Scott , Paul Seymour

An independent dominating set of a graph, also known as a maximal independent set, is a set $S$ of pairwise non-adjacent vertices such that every vertex not in $S$ is adjacent to some vertex in $S$. We prove that for $\Delta=4$ or…

Combinatorics · Mathematics 2022-11-30 Eun-Kyung Cho , Jinha Kim , Minki Kim , Sang-il Oum

We construct several pairwise-incomparable bounds on the projective dimensions of edge ideals. Our bounds use combinatorial properties of the associated graphs; in particular we draw heavily from the topic of dominating sets. Through…

Commutative Algebra · Mathematics 2011-10-25 Hailong Dao , Jay Schweig

This paper addresses two open questions posed in [27] regarding the balanced domination number in graphs. We show that three new classes of graphs, those of convex polytopes A_n, D_n, and Rn'', are d-balanced. Further, we provide a…

Combinatorics · Mathematics 2025-11-12 Bojan Nikolic , Marko Djukanovic

We give logarithmic lower bounds for the approximability of the Minimum Dominating Set problem in connected (alpha,beta)-Power Law Graphs. We give also a best up to now upper approximation bound on the problem for the case of the parameters…

Computational Complexity · Computer Science 2012-12-17 Mikael Gast , Mathias Hauptmann , Marek Karpinski

We propose the conjecture that the domination number $\gamma(G)$ of a $\Delta$-regular graph $G$ with $\Delta\geq 1$ is always at most its edge domination number $\gamma_e(G)$, which coincides with the domination number of its line graph.…

Combinatorics · Mathematics 2019-07-09 Julien Baste , Maximilian Fürst , Michael A. Henning , Elena Mohr , Dieter Rautenbach

The game domination number is a graph invariant that arises from a game, which is related to graph domination in a similar way as the game chromatic number is related to graph coloring. In this paper we show that verifying whether the game…

Combinatorics · Mathematics 2016-06-20 Boštjan Brešar , Paul Dorbec , Sandi Klavžar , Gašper Košmrlj , Gabriel Renault

We show that the k-Dominating Set problem is fixed parameter tractable (FPT) and has a polynomial kernel for any class of graphs that exclude K_{i,j} as a subgraph, for any fixed i, j >= 1. This strictly includes every class of graphs for…

Data Structures and Algorithms · Computer Science 2009-05-15 Geevarghese Philip , Venkatesh Raman , Somnath Sikdar

In this follow-up to [M.G.~Cornet, P.~Torres, arXiv:2308.15603], where the $k$-tuple domination number and the 2-packing number in Kneser graphs $K(n,r)$ were studied, we are concerned with two variations, the $k$-domination number,…

Combinatorics · Mathematics 2023-12-27 Boštjan Brešar , María Gracia Cornet , Tanja Dravec , Michael A. Henning

Given a graph G equals (V,E), a subset S subset of V is a dominating set if every vertex in V minus S is adjacent to some vertex in S. The dominating set with the least cardinality, gamma, is called a gamma-set which is commonly known as a…

Combinatorics · Mathematics 2026-01-01 Julian Allagan , Benkam Bobga

We show that the domination number of the binomial random graph G_{n,p} with edge-probability p is concentrated on two values for p \ge n^{-2/3+\eps}, and not concentrated on two values for general p \le n^{-2/3}. This refutes a conjecture…

Probability · Mathematics 2024-02-20 Tom Bohman , Lutz Warnke , Emily Zhu

We investigate how the algebraic connectivity of a graph changes by relocating a connected branch from one vertex to another vertex, and then minimize the algebraic connectivity among all connected graphs of order $n$ with fixed domination…

Combinatorics · Mathematics 2013-11-01 Yi-Zheng Fan , Ying-Ying Tan

For a graph G=(V,E), the k-dominating graph of G, denoted by $D_{k}(G)$, has vertices corresponding to the dominating sets of G having cardinality at most k, where two vertices of $D_{k}(G)$ are adjacent if and only if the dominating set…

Combinatorics · Mathematics 2017-08-24 C. M. Mynhardt , R. Roux , L. E. Teshima

The dominating set problem and its generalization, the distance-$r$ dominating set problem, are among the well-studied problems in the sequential settings. In distributed models of computation, unlike for domination, not much is known about…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-10-08 Saeed Akhoondian Amiri , Ben Wiederhake

While a number of bounds are known on the zero forcing number $Z(G)$ of a graph $G$ expressed in terms of the order of a graph and maximum or minimum degree, we present two bounds that are related to the (upper) total domination number…

Combinatorics · Mathematics 2023-10-12 Boštjan Brešar , María Gracia Cornet , Tanja Dravec , Michael Henning
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