G. Lau

activity

20122026

most citedApproaches Which Output Infinitely Many Graphs With Small Local Antimagic Chromatic Number

2 citations · 7 across the 24 of their papers we have counts for

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Showing 2022 · math.COShow all

7 papers · 2 filters

math.CO2022★ 2 cited

Complete characterization of s-bridge graphs with local antimagic chromatic number 2

Gee-Choon Lau, Wai-Chee Shiu, Ruixue Zhang +2

An edge labeling of a connected graph $G = (V, E)$ is said to be local antimagic if it is a bijection $f : E \to {1, \dots, ∣ E ∣}$ such that for any pair of adjacent vertices $x$ and…

math.CO2022

A note on local antimagic chromatic number of lexicographic product graphs

Gee-Choon Lau, Wai-Chee Shiu, K. Premalatha +2

Let $G = (V, E)$ be a connected simple graph. A bijection $f : E \to {1, 2, \dots, ∣ E ∣}$ is called a local antimagic labeling of $G$ if $f^{+} (u) \neq = f^{+} (v)$ holds for any two…

math.CO2022

Sudoku Number of Graphs

Gee-Choon Lau, J. Maria Jeyaseeli, Wai-Chee Shiu +1

We introduce a new concept in graph coloring motivated by the popular Sudoku puzzle. Let $G = (V, E)$ be a graph of order $n$ with chromatic number $χ (G) = k$ and let $S \subseteq V .$ Le…

math.CO2022

On local antimagic chromatic number of lexicographic product graphs

Gee-Choon Lau, Wai-Chee Shiu

Let $G = (V, E)$ be a connected simple graph of order $p$ and size $q$ . A graph $G$ is called local antimagic if $G$ admits a local antimagic labeling. A bijection $f : E \to \{1,2,…

math.CO2022

On local antimagic chromatic number of a corona product graph

Gee-Choon Lau, M. Nalliah

In this paper, we provide a correct proof for the lower bounds of the local antimagic chromatic number of the corona product of friendship and fan graphs with null graph respective…

math.CO2022

On join product and local antimagic chromatic number of regular graphs

Gee-Choon Lau, Wai-Chee Shiu

Let $G = (V, E)$ be a connected simple graph of order $p$ and size $q$ . A graph $G$ is called local antimagic if $G$ admits a local antimagic labeling. A bijection $f : E \to \{1,2,…