Journal of Jilin University Science Edition

Previous Articles     Next Articles

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

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

CLC Number: 

  • O157.5