Research output: Contribution to journal › Article › peer-review
Total coalitions in graphs. / Alikhani, Saeid; Bakhshesh, Davood; Golmohammadi, Hamidreza.
In: Quaestiones Mathematicae, 2024.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Total coalitions in graphs
AU - Alikhani, Saeid
AU - Bakhshesh, Davood
AU - Golmohammadi, Hamidreza
PY - 2024
Y1 - 2024
N2 - We define a total coalition in a graph G as a pair of disjoint subsets A1,A2 ⊆ A that satisfy the following conditions: (a) neither A1 nor A2 constitutes a total dominating set of G, and (b) A1 ∪ A2 constitutes a total dominating set of G. A total coalition partition of a graph G is a partition ϒ = {A1,A2,..,Ak} of its vertex set such that no subset of ϒ acts as a total dominating set of G, but for every set Ai ∈ ϒ, there exists a set Aj ∈ ϒ such that Ai and Aj combine to form a total coalition. We define the total coalition number of G as the maximum cardinality of a total coalition partition of G, and we denote it by Ct(G). The purpose of this paper is to begin an investigation into the characteristics of total coalition in graphs.
AB - We define a total coalition in a graph G as a pair of disjoint subsets A1,A2 ⊆ A that satisfy the following conditions: (a) neither A1 nor A2 constitutes a total dominating set of G, and (b) A1 ∪ A2 constitutes a total dominating set of G. A total coalition partition of a graph G is a partition ϒ = {A1,A2,..,Ak} of its vertex set such that no subset of ϒ acts as a total dominating set of G, but for every set Ai ∈ ϒ, there exists a set Aj ∈ ϒ such that Ai and Aj combine to form a total coalition. We define the total coalition number of G as the maximum cardinality of a total coalition partition of G, and we denote it by Ct(G). The purpose of this paper is to begin an investigation into the characteristics of total coalition in graphs.
KW - Total dominating set
KW - coalition
KW - total coalition
KW - tree
UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85197702705&origin=inward&txGid=edc64a075e14e73cb00b658beb736117
UR - https://www.mendeley.com/catalogue/c6cbdc90-7ab7-30bf-8b66-57eccda6ed60/
U2 - 10.2989/16073606.2024.2365365
DO - 10.2989/16073606.2024.2365365
M3 - Article
JO - Quaestiones Mathematicae
JF - Quaestiones Mathematicae
SN - 1727-933X
ER -
ID: 60535109