Publication:
Total Outer-Independent Domination Number: Bounds and Algorithms

dc.contributor.authorBosch, Paul
dc.contributor.authorParra Inza, Ernesto
dc.contributor.authorRios Villamar, Ismael
dc.contributor.authorSánchez-Santiesteban, José Luis
dc.date.accessioned2026-10-05T21:00:02Z
dc.date.available2026-10-05T21:00:02Z
dc.date.issued2025
dc.description.abstractIn graph theory, the study of domination sets has garnered significant interest due to its applications in network design and analysis. Consider a graph G(V, E); a subset of its vertices is a total dominating set (TDS) if, for each x ∈ V(G), there exists an edge in E(G) connecting x to at least one vertex within this subset. If the subgraph induced by the vertices outside the TDS has no edges, the set is called a total outer-independent dominating set (TOIDS). The total outer-independent domination number, denoted as γoit (G), represents the smallest cardinality of such a set. Deciding if a given graph has a TOIDS with at most r vertices is an NP-complete problem. This study introduces new lowerand upper bounds for γoit (G) and presents an exact solution approach using integer linear programming (ILP). Additionally, we develop a heuristic and a procedure to efficiently obtain minimal TOIDS.
dc.description.versionVersión publicada
dc.format.extent18 p.
dc.identifier.citationBosch, P., Parra Inza, E., Rios Villamar, I., & Sánchez-Santiesteban, J. L. (2025). Total Outer-Independent Domination Number: Bounds and Algorithms. Algorithms, 18(3), 159. https://doi.org/10.3390/a18030159
dc.identifier.doihttps://doi.org/10.3390/a18030159
dc.identifier.urihttps://hdl.handle.net/11447/11226
dc.language.isoen
dc.subjectGraph theory
dc.subjectTotal outer-independent dominating set
dc.subjectInteger linear program
dc.subjectHeuristic algorithm
dc.subjectTime complexity
dc.titleTotal Outer-Independent Domination Number: Bounds and Algorithms
dc.typeArticle
dcterms.accessRightsAcceso abierto
dcterms.sourcealgorithms
dspace.entity.typePublication

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