Results 21 to 30 of about 11,572,072 (152)

On Equality and Strong Equality of Domination Number and Independent Domination Number in Graphs [PDF]

open access: yes, 2021
 In this paper we explore graphs having same domination number and independent domination number . Such graphs are denoted as ( , )-graphs. Several families of  ( , )-graphs have been constructed.
Femlin, Pious, Mayamma, Joseph
core   +1 more source

The Forcing Domination Number of Hamiltonian Cubic Graphs [PDF]

open access: yes, 2009
The authors presented a sequence of Hamiltonian cubic graphs whose domination numbers are sharp and in this paper we study forcing domination number for those ...
H. Abdollahzadeh Ahangar   +3 more
core   +1 more source

On domination and independent domination numbers of a graph

open access: yesDiscrete Mathematics, 1978
AbstractFor a graph G, the definitions of domination number, denoted γ(G), and independent domination number, denoted i(G), are given, and the following results are obtained:Theorem. If G does not have an induced subgraph isomorphic to K1,3, then γ(G) = i(G).Corollary 1. For any graph G, γ(L(G))=i(L(G)), where L(G) is the line graph of G. (This extends
Robert B. Allan, Renu C. Laskar
openaire   +1 more source

Triple Connected Domination Number of a Graph [PDF]

open access: yes, 2012
The concept of triple connected graphs with real life application was introduced by considering the existence of a path containing any three vertices of a graph G.
Selvam Avadayappan   +7 more
core   +1 more source

Singed Total Domatic Number of a Graph [PDF]

open access: yes, 2010
The maximum number of functions in a signed total dominating family on G is the signed total domatic number of G. In this paper, some properties related signed total domatic number and signed total domination number of a graph are studied and found the ...
Shailaja S. Shirkol   +2 more
core   +1 more source

The Number of Minimum Dominating Sets in Pn × P2 [PDF]

open access: yes, 2010
A set S of vertices in a graph G is said to be a Smarandachely k-dominating set if each vertex of G is dominated by at least k vertices of S.
Kishori P. Narayankar   +5 more
core   +1 more source

On graphs with equal domination and independent domination numbers

open access: yesDiscrete Mathematics, 1991
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Jerzy Topp, Lutz Volkmann
openaire   +3 more sources

Graphs with equal Grundy domination and independence number

open access: yesDiscrete Optimization, 2023
The Grundy domination number, ${γ_{\rm gr}}(G)$, of a graph $G$ is the maximum length of a sequence $(v_1,v_2,\ldots, v_k)$ of vertices in $G$ such that for every $i\in \{2,\ldots, k\}$, the closed neighborhood $N[v_i]$ contains a vertex that does not belong to any closed neighborhood $N[v_j]$, where ...
Gábor Bacsó   +3 more
openaire   +5 more sources

On the Number of k‐Dominating Independent Sets [PDF]

open access: yesJournal of Graph Theory, 2016
AbstractWe study the existence and the number of k‐dominating independent sets in certain graph families. While the case namely the case of maximal independent sets—which is originated from Erdős and Moser—is widely investigated, much less is known in general.
openaire   +6 more sources

Remarks on the outer-independent double Italian domination number [PDF]

open access: yes, 2021
Let $G$ be a graph with vertex set $V(G)$. If $u \in V(G)$, then $N[u]$ is the closed neighborhood of $u$. An outer-independent double Italian dominating function (OIDIDF) on a graph $G$ is a function $ƒ : V(G) \rightarrow \{0, 1, 2, 3\}$ such that if $ƒ
Volkman, Lutz   +2 more
core   +2 more sources

Home - About - Disclaimer - Privacy