论文标题
最多可达到双盖，每个常规连接的图都是schreier图的同构
Up to a double cover, every regular connected graph is isomorphic to a Schreier graph
论文作者
论文摘要
我们证明，每个连接的本地有限的常规图都有双盖，这是Schreier图的同构。
We prove that every connected locally finite regular graph has a double cover which is isomorphic to a Schreier graph.
