journal6 ›› 2014, Vol. 35 ›› Issue (2): 3-5.DOI: 10.3969/j.issn.1007-2985.2014.02.002

• Mathematics • Previous Articles     Next Articles

Gracefulness of Unconnected Graph G+e∪Hk-1

 WU  Yue-Sheng   

  1. (School of Basic Sciences,East China Jiaotong University,Nanchang 330013,China)
  • Online:2014-03-25 Published:2014-05-09

Abstract: It is proved that  if k≥2 then unconnected graph G+e∪Hk-1 is a graceful graph,where G is balanced bipartite graph and Hk-1  is a graceful graph with k-1 edges.

Key words: graceful graph, unconnected graph, balanced bipartite graph

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