Combining with the condition of C-partition and tetragon 2-factor, we give new classes of upper-embeddable graphs.

联系图的顶点划分和四边形2因子的条件，本文给出了新的上可嵌入的图类。

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Combining with the condition of C-partition and tetragon 2-factor, we give new classes of upper-embeddable graphs.

联系图的顶点划分和四边形2因子的条件，本文给出了新的上可嵌入的图类。

youdao