论文标题
使用加泰罗尼亚和Borel的三角形在无限的常规树中计数封闭的步行
Counting closed walks in infinite regular trees using Catalan and Borel's triangles
论文作者
论文摘要
我们使用加泰罗尼亚的三角形以及Borel的三角形来计算普通树上顶点上的封闭步行数量，显示了这两个数字数组计算的另一个组合结构。
We count the number of closed walks on a vertex in a regular tree using the Catalan's triangle and also the Borel's triangle, showing another combinatorial structure counted by these two array of numbers.
