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Signed total double Roman dominating functions in graphs [PDF]

AKCE International Journal of Graphs and Combinatorics
A signed total double Roman dominating function (STDRDF) on an isolated-free graph [Formula: see text] is a function [Formula: see text] such that (i) every vertex v with [Formula: see text] has at least two neighbors assigned 2 under f or one neighbor w
L. Shahbazi +2 more
doaj +5 more sources

More results on the signed double Roman domination number of graphs [PDF]

AKCE International Journal of Graphs and Combinatorics
A signed double Roman dominating function (SDRD-function) on a graph G is defined as a function [Formula: see text] having the property that [Formula: see text] for each [Formula: see text] and if [Formula: see text], then the vertex u must have a ...
Seyed Mahmoud Sheikholeslami, Lutz Volkmann +1 more
doaj +6 more sources

Bounds on signed total double Roman domination [PDF]

Communications in Combinatorics and Optimization, 2020
A signed total double Roman dominating function (STDRDF) on {an} isolated-free graph $G=(V,E)$ is a function $f:V(G)\rightarrow\{-1,1,2,3\}$ such that (i) every vertex $v$ with $f(v)=-1$ has at least two neighbors assigned 2 under $f$ or one neighbor ...
L. Shahbazi +3 more
doaj +2 more sources

Signed double Roman domination on cubic graphs [PDF]

Applied Mathematics and Computation, 2023
The signed double Roman domination problem is a combinatorial optimization problem on a graph asking to assign a label from $\{\pm{}1,2,3\}$ to each vertex feasibly, such that the total sum of assigned labels is minimized. Here feasibility is given whenever (i) vertices labeled $\pm{}1$ have at least one neighbor with label in $\{2,3\}$; (ii) each ...
Enrico Iurlano +3 more
core +7 more sources

Signed double Roman domination in graphs

Discrete Applied Mathematics, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hossein Abdollahzadeh Ahangar, Seyed Mahmoud Sheikholeslami +1 more
exaly +4 more sources

More results on the signed double Roman k-domination in graphs

Aequationes Mathematicae
Abstract Let $$k\ge 1$$ k ≥ 1 be an integer, and let G be a finite and simple graph with vertex set V(G).
Michael Henning, Lutz Volkmann, Henning Michael A +2 more
exaly +3 more sources

Perception of Key Ethical Issues in Assisted Reproductive Technology (ART) by Providers and Clients in Nigeria. [PDF]