Abstract

The field of graph theory plays a vital role in various fields. One of the important areas in graph theory is graph labeling used in many applications such as coding theory, X-ray crystallography, radar, astronomy, circuit design, communication network addressing, and data base management. In this paper, we discuss the totally irregular total k labeling of three planar graphs. If such labeling exists for minimum value of a positive integer k, then this labeling is called totally irregular total k labeling and k is known as the total irregularity strength of a graph G. More preciously, we determine the exact value of the total irregularity strength of three planar graphs.

Highlights

  • All graphs considered here are finite, undirected, without loops or multiple edges

  • Graph labeling provides valuable information used in several application areas

  • We investigate the total irregularity strength of planar graphs

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Summary

Introduction

All graphs considered here are finite, undirected, without loops or multiple edges. Denote by. [3] Let G be a finite graph with p vertices, q edges and having maximum degree ∆ = ∆( G ), the upper square brackets represent the ceiling function, and tes( G ) ≥ max q+2. [3] Let G be a finite graph with p vertices, q edges, minimum degree δ = δ( G ) and maximum degree ∆ = ∆( G ), the upper square brackets represent the ceiling function, and lp+δm. [4] Let G be a finite graph with p vertices, q edges, different from K5 with minimum degree δ = δ( G ), maximum degree ∆ = ∆( G ), the upper square brackets represent the ceiling function, and tes( G ) = max. We investigate the total irregularity strength of planar graphs

The Planar Graph Tn
The Planar Graph Qn
Conclusions

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