For positive integers m, n, K m,n represents the complete bipartite graph. We name the graph G = K m,n ⊙ K2 as triangular extension of complete bipartite graph K m,n , since there is a triangle hanging from every vertex of K m,n . In this paper we show that G is graceful when m = n = 2ℓ, for any integer ℓ.
Electronic Journal of Graph Theory and Applications (EJGTA)
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Mitra, S., & Bhoumik, S. (2019). Graceful labeling of triangular extension of complete bipartite graph. Electronic Journal of Graph Theory and Applications (EJGTA), 7(1), 11–30. https://doi.org/10.5614/ejgta.2019.7.1.2