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Paper   IPM / M / 11256
School of Mathematics
  Title:   Weakly perfect graphs arising from rings
  Author(s): 
1.  H. R. Maimani
2.  M. R. Pournaki
3.  S. Yassemi
  Status:   Published
  Journal: Glasgow Math. J.
  Vol.:  52
  Year:  2010
  Pages:   417-425
  Supported by:  IPM
  Abstract:
A graph is called weakly perfect if its chromatic number equals its clique number. In this paper a new class of weakly perfect graphs arising from rings are presented and an explicit formula for the chromatic number of such graphs is given.


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