Paired disjunctive domination in some shadow distance graphs


Golpek H. T., Aytac A.

Discrete Mathematics, Algorithms and Applications, 2025 (ESCI) identifier identifier

Abstract

This paper investigates the concept of paired disjunctive domination, initially proposed by Henning et al. A subset D ⊆ V is defined as a disjunctive dominating set of a graph G if, for every vertex v ∈ V, there exists either a vertex in D adjacent to v, or there are at least two vertices in D such that their distance from v is exactly two in G. Furthermore, a disjunctive dominating set D ⊆ V is labeled as a paired disjunctive dominating set if the induced subgraph by D in G contains a perfect matching. This paper explores the implications of the paired disjunctive domination parameter on shadow graphs, 2-distance graphs, and 3-distance path and cycle shadow graphs.