Journal of East China Normal University(Natural Sc ›› 2013, Vol. 2013 ›› Issue (2): 124-130.

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(2,1)-total labelling of some general\\[1mm] crown graphs of circle

LIU Xiu-li   

  1. Department of Mathematics, Heze University, Heze Shandong 274015,  China
  • Received:2012-04-01 Revised:2012-07-01 Online:2013-03-25 Published:2013-03-20

Abstract: The coloring problem of (2,1)-total labelling of some
graphs was related to frequency assignment problems. By using the
eternal coloring method, a new labelling method according to the
feature of the general crown graphs of circle was given and the
(2,1)-total numbers of these graphs was obtained. And the
(2,1)-total labelling of graphs extends the total coloring of
graphs.

Key words: (2,1)-total labelling, (2,1)-total number, total coloring, general crown graph

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