论文标题
在平面图编织组的第二个同源性上
On the second homology of planar graph braid groups
论文作者
论文摘要
我们表明，平面图的配置空间的第二个同源性是在嵌入，不相交联合和边缘稳定下通过三个原子图生成的：带有一个边缘的循环图，带有三个边缘的恒星图，以及带有四个边缘的theta图。我们举了一个非平面图的示例，该语句是错误的。
We show that the second homology of the configuration spaces of a planar graph is generated under the operations of embedding, disjoint union, and edge stabilization by three atomic graphs: the cycle graph with one edge, the star graph with three edges, and the theta graph with four edges. We give an example of a non-planar graph for which this statement is false.
