图的着色问题是图论的重要研究课题之一,分数色数作为正常色数的一个推广在计算机的许多领域中有着重要的应用.此处给出了广义圈、广义轮图的r-冠图的分数色数的计算公式.
The issue of coloring is a very important topic in the graph theory. Fractional coloring as generalized coloring has been used in many fields of computer science. This paper gives formulas to compute the fractional chromatic number of r-corona graphs for generalized circle and generalized wheel.