DOI: 10.1142/s1793830922501488

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# Local irregular vertex coloring of comb product by path graph and star graph

## Arika Indah Kristiana,Indah Lutfiyatul Mursyidah,D. Dafik,Robiatul Adawiyah,Ridho Alfarisi

Combinatorics

Vertex (graph theory)

Mathematics

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Kristiana, A. I., Mursyidah, I. L., Dafik, D., Adawiyah, R., & Alfarisi, R. (2022). Local irregular vertex coloring of comb product by path graph and star graph. Discrete Mathematics, Algorithms and Applications. https://doi.org/10.1142/s1793830922501488

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Let [Formula: see text] be a simple graph and connected. A function [Formula: see text] is called vertex irregular [Formula: see text]-labeling and [Formula: see text] where [Formula: see text] The function of [Formula: see text] is called local irregular vertex coloring if every [Formula: see text] and [Formula: see text] vertex irregular labeling}. The local irregular chromatic number is denoted by [Formula: see text] In this paper, we study local irregular vertex coloring of [Formula: see text], and [Formula: see text]