吉林大学学报(理学版)

• 数学 • 上一篇    下一篇

 一类强优美标号树

赵喜杨, 马飞, 姚兵   

  1. 西北师范大学 数学与统计学院, 兰州 730070
  • 收稿日期:2015-05-18 出版日期:2016-03-26 发布日期:2016-03-23
  • 通讯作者: 姚兵 E-mail:yybb918@163.com

A Class of Trees Having  Strongly Graceful Labellings

ZHAO Xiyang, MA Fei, YAO Bing   

  1. College of Mathematics and Statistics, Northwest Normal University, Lanzhou 730070, China
  • Received:2015-05-18 Online:2016-03-26 Published:2016-03-23
  • Contact: YAO Bing E-mail:yybb918@163.com

摘要:

通过依次给具有二分优美标号的树的每个顶点连续添加两次悬挂点, 运用拆分的方式, 有效证明了一类超级对虾树S(P2m)(其中m为任意正整数)为强优美树, 该方法称为悬挂拆分法.

关键词: 树, 强优美标号, 完美匹配

Abstract:

Adding suspension points to those trees having setordered graceful labellings two times, and then using a split approach, we proved that a class of the super lobster trees S(P2m) were strongly graceful tree, where m is an arbitrary positive integer. This method is called the suspensionsplit method.

Key words: tree, strong graceful labellings, perfect matching

中图分类号: 

  • O157.5