J4 ›› 2010, Vol. 45 ›› Issue (10): 49-52.

• Articles • Previous Articles     Next Articles

The factorization of adjoint polynomials of graphsHi SS*(1)(q,n(rm+1))

CHEN Gui-xiu1,2   

  1. 1. College of Mathematics and Information Sciences, Shaanxi Normal University, Xi’an 710062, Shaanxi, China;
    2. Department of Mathematics, Qinghai Normal University, Xining 810008, Qinghai, China
  • Received:2009-10-23 Online:2010-10-16 Published:2010-10-19

Abstract:

By studying the factorization of adjoint polynomials of graphs Hi SS*(1)(q,n(rm+1)),it is proved that structure characteristics of chromatically equivalent graphs and chromatically non-uniqueness of their complement graphs.

Key words: chromatic polynomial; adjoint polynomial; factorization; chromatically equivalent graph; chromatically non-uniqueness

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