• In this paper, Euler's formula and Handshaking lemma is used to obtain the face chromatic number of a planar graph by solving equations.

    本文在前人研究面着色问题基础上,运用欧拉公式握手定理通过方程组得到连通平面图的面色

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  • Besides, it concretely analysized the calculation of face chromatic number of plan view on the surface of the sphere and the ring, and promoted the application of equations.

    具体分析球面面上平面图面色计算方程组应用进行推广

    youdao

  • Besides, it concretely analysized the calculation of face chromatic number of plan view on the surface of the sphere and the ring, and promoted the application of equations.

    具体分析球面面上平面图面色计算方程组应用进行推广

    youdao

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