Abstract

Let $\Gamma=\Gamma(\mathbb{V},\mathbb{E})$ be a simple (i.e., multiple edges and loops and are not allowed), connected (i.e., there exists a path between every pair of vertices), and an undirected (i.e., all the edges are bidirectional) graph. Let $d_{\Gamma}(\varrho_{i},\varrho_{j})$ denotes the geodesic distance between two nodes $\varrho_{i},\varrho_{j} \in \mathbb{V}$. The problem of characterizing the classes of plane graphs with constant metric dimensions is of great interest nowadays. In this article, we characterize three classes of plane graphs (viz., $\mathfrak{J}_{n}$, $\mathfrak{K}_{n}$, and $\mathfrak{L}_{n}$) which are generated by taking n-copies of the complete bipartite graph (or a star) $K_{1,5}$, and all of these plane graphs are radially symmetrical with the constant metric dimension. We show that three vertices is a minimal requirement for the unique identification of all vertices of these three classes of plane graphs.

Highlights

  • Let Γ be a simple connected graph with the vertex set V and the edge set E, and let dΓ( i, j) denotes the geodesic distance between two vertices i, j ∈ V

  • We characterize three classes of plane graphs which are generated by taking n-copies of the complete bipartite graph K1,5, and all of these plane graphs are radially symmetrical with the constant metric dimension

  • These classes of plane graphs are radially symmetric and possess an independent minimum resolving set with cardinality three i.e., three vertices is a minimal requirement for the unique identification of all vertices of these three classes of plane graphs

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Summary

Introduction

Let Γ be a simple connected graph with the vertex set V and the edge set E, and let dΓ( i, j) denotes the geodesic distance between two vertices i, j ∈ V. Harary graphs H4,n and generalized Petersen graphs P (n, 2), are the families of graphs with constant metric dimension [7]. We determine the metric dimension of three classes of plane graphs (viz., Jn, Kn, and Ln) which are generated by taking n-copies of the complete bipartite graph (or a star) K1,5 (see Figure 1). These classes of plane graphs are radially symmetric and possess an independent minimum resolving set with cardinality three i.e., three vertices is a minimal requirement for the unique identification of all vertices of these three classes of plane graphs.

Metric dimension of the planar graph Jn
Metric dimension of the planar graph Kn
Metric dimension of the planar graph Ln
Conclusion
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