Research on the problems of tree and single circle graph, And the conclusion that their r- color independent set partition number is given. This method has certain reference value for studying other class figure rcolor independent set partition problems.%研究树图及单圈图的r-色独立集划分问题,并得出了它们的r-色独立集划分个数,其中运用的方法对于研究其他类图的r-色独立集划分问题都会有一定的借鉴价值.
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