J4 ›› 2010, Vol. 45 ›› Issue (8): 36-39.

• Articles • Previous Articles     Next Articles

The new lower bound for the size of edge chromatic critical graphs with maximum degree 7

TIAN Da-dong, MIAO Lian-ying, LI Mei   

  1. College of Sciences, China University of Mining and Technology, Xuzhou 221116, Jiangsu, China
  • Received:2009-09-24 Online:2010-08-16 Published:2010-09-16

Abstract:

By applying a discharging method, a new lower bound for the side with Δ=7 is given.

Key words: critical graphs; the size of edge; the lower size; degrees

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