Reflexive Edge Strength in Certain Graphs with Dominant Vertex

  • Marsidi Department of Mathematics Education Postgraduate, University of Jember
  • Dafik Department of Mathematics, University of Jember
  • Susanto Department of Mathematics Education Postgraduate, University of Jember
  • Arika Indah Kristiana Department of Mathematics Education Postgraduate, University of Jember
  • Ika Hesti Agustin Department of Mathematics, University of Jember
  • M Venkatachalam PG and Research Department of Mathematics, Kongunadu Arts and Science College
Keywords: Edge irregular reflexive k-labeling, Reflexive edge strength, Book graph, Triangular book graph, Jahangir graph, Helm graph

Abstract

Consider a basic, connected graph G with an edge set of $E(G)$ and a vertex set of $V(G)$. The functions $f_e$ and $f_v$, which take $k=max\{k_e, 2k_v\}$, from the edge set to the first $k_e$ natural number and the non-negative even number up to $2k_v$, respectively, are the components of total $k$-labeling. An \textit{edge irregular reflexive $k$ labeling} of the graph $G$ is the total $k$-labeling, if for every two different edges $x_1x_2$ and $x_1'x_2'$ of $G$, $wt(x_1x_2) \neq wt(x_1'x_2')$, where $wt(x_1x_2)=f_v(x_1)+f_e(x_1x_2)+f_v(x_2)$. The reflexive edge strength of graph $G$ is defined as the minimal $k$ for graph $G$ with an edge irregular reflexive $k$-labeling; it is denoted by $res(G)$. The $res(G)$, where $G$ are the book, triangular book, Jahangir, and helm graphs, was found in this work.

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Published
2025-03-28
How to Cite
Marsidi, Dafik, Susanto, Kristiana, A. I., Agustin, I. H., & Venkatachalam, M. (2025). Reflexive Edge Strength in Certain Graphs with Dominant Vertex. Statistics, Optimization & Information Computing. https://doi.org/10.19139/soic-2310-5070-2210
Section
Research Articles