Star Chromatic Numbers of Planar Graphs |
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| Authors: | WANG Yijiu Institute of Operations Research Qufu Normal university |
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| Institution: | WANG Yijiu Institute of Operations Research,Qufu Normal university,273165 |
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| Abstract: | The concept of the star chromatic number of a graph was introduced by A.Vince in ,which is a natural generalizition of the chromatic number of a graph.In this paper,we investigate the star chromatic number of a family of planar graphs.More precisely, a family of planar graphs whose star chromatic numbers are between 2 and 3 are disscused,which answers the open problem posed by Vince in . |
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| Keywords: | star chromatic number planar graph cycle star graph |
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