Lucas Graceful Labeling for TP –Tree
Abstract : Let G be a (p,q)-graph. An injective function f : V(G) →{ l0, l1, l2, l3. . .la},(a є N), is said to be Lucas graceful labeling if an induced edge labeling f1( uv )= | f(u)- f(v) | is a bijection onto the set { l1, l 2, l 3. . .lq}. […]