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Pair Sum Labeling Of Some Special Graphs

K. Manimekalai,K.Thirusangu

Published in:   Vol. 2 Issue 2 Date of Publication:   December 2013
Page(s):   83-85 Publisher:   Integrated Intelligent Research (IIR)
DOI:   10.20894/IJCOA. SAI : 2013SCIA316F0977

Let G be a (p, q) graph. A one-one map f : V(G)  {1, 2, �, p} is said to be a pair sum labeling if the induced edge function, fe : E(G)  Z � {0} defined by fe(uv) = f(u) + f(v) is one-one and fe(E(G)) is either of the form {k1, k2, �, kq/2} or {k1, k2, �, k(q1)/2}  {k(q+1)/2} according as q is even or odd. Recently, the pair sum labeling is introduced by R.Ponraj, J. V. X. Parthipan. In this paper we study about the pair sum labeling of coconut tree CT(m, n), the the Y-tree Yn+1, Jelly fish J(m, n), (m, 2)-kite, (m, 1)-kite and the theta graph Ѳ(l[m] ), for m even.