Some Results on Cordial Labeling and Variations of Cordial Labeling

Abstract

Rosa [14] pioneered graph labeling is assigning integers to vertices, edges or both under specific constraints. In 2025, Jeba Jesintha et al. [10], [11] have introduced two variations of cordial labeling namely Fibonacci mean cordial labeling and Octa –cordial labeling.  This paper discusses the existence of cordial labeling of christmas tree, Fibonacci mean cordial labeling of comb graph and Octa-cordial labeling of arrow graph.