journal6 ›› 2012, Vol. 33 ›› Issue (5): 9-11.DOI: 10.3969/j.issn.1007-2985.2012.05.002

• Mathematics • Previous Articles     Next Articles

Gracefulness of the Graph  C7 (r1,r2,r3, r4,r5,0,0)∪St(m)


  • Online:2012-09-25 Published:2012-11-30

Abstract: (r1,r2,r3, r4,r5,0,0)-corona of cycle C7 is written as C7 (r1,r2,r3, r4,r5,0,0),and St(m) indicates m+1 vertexes and star graph with m edges.The gracefulness of the graph C7 (r1,r2,r3, r4,r5,0,0)∪St(m) is discussed.The graceful labelings are given.It also proves that some graphs C7 (r1,r2,r3, r4,r5,0,0)∪St(m) are special graceful graph.

Key words: disconnected graph, cycle, corona, star, graceful graph

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