$Z_2\times Z_2$-cordial cycle-free hypergraphs

Sylwia Cichacz, Agnieszka Görlich, Zsolt Tuz

Hovey introduced $A$-cordial labelings as a generalization of cordial and harmonious labelings \cite{Hovey}. If $A$ is an Abelian group, then a labeling $f \colon V (G) \rightarrow…