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 $f^{+}(u)\ne f^{+}(v)$ holds for any two…