Volume - 13 | Issue-1
Volume - 13 | Issue-1
Volume - 13 | Issue-1
Volume - 13 | Issue-1
Volume - 13 | Issue-1
Pell graceful labeling was introduced in [1]. In this paper, pell graceful labeling of few families of trees are found. We introduce a new concept pell graceful edge number and the same is found for few standard graphs, also bounds are found in some cases.