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Seventh and Eighth Order Triangular Sum Labeling of Graphs

C. Jayasekaran, Pioneer Kumaraswamy College, C. Sunitha
2019 Annals of Pure and Applied Mathematics  
A (p, q) graph G is said to admit a seventh (or eighth) order triangular sum labeling if its vertices can be labeled by non negative integers such that induced edge labels obtained by the sum of the labels of end vertices are the seventh (or eighth) order triangular numbers. A graph G which admits a seventh (or eighth) order triangular sum labeling is called a seventh (or eighth) order triangular sum graph. In this paper we prove that double star K 1,n,n , Tg n and Coconut tree admit seventh
more » ... ee admit seventh and eighth order triangular sum labelings.
doi:10.22457/apam.613v19n2a10 fatcat:cn7nnuihmzc3bgxybqrcmk2ieq