TITLE:
L(2,1)-Labeling Number of the Product and the Join Graph on Two Fans
AUTHORS:
Sumei Zhang, Qiaoling Ma
KEYWORDS:
Labeling Number; Join Graph; Product Graph
JOURNAL NAME:
Applied Mathematics,
Vol.4 No.7,
July
16,
2013
ABSTRACT: L(2,1)-labeling number of the product and the join graph on two fans are discussed in this paper, we proved that L(2,1)-labeling number of the product graph on two fans isλ(G) ≤ Δ+3 , L(2,1)-labeling number of the join graph on two fans isλ(G) ≤ 2Δ+3.