This article describes a practical approach for determining the lattice of subgroups U < V < G between given subgroups U and G, provided the total number of such subgroups is not too large. It builds on existing functionality for element conjugacy, double cosets and maximal subgroups.

中文翻译：

---

寻找中间子群

本文描述了一种用于确定给定子群 U 和 G 之间子群 U < V < G 格的实用方法，前提是此类子群的总数不太大。它建立在元素共轭、双陪集和最大子群的现有功能之上。