您要查找的是不是：
- 標準Borel子群standard Borel groups
- 子midnight
- 標準standard
- 帖子post
- 標準的normal
- 標準西洛子群canonical sylow subgroup
- 阿貝爾子群秩Abelian subgroup rank
- 閉子群closed subgroup
- 撓子群torsion subgroup
- 閉正規子群closed normal subgroup
- 脂餘子群principal congruence subgroup
- p子群p-subgroup
- 零子群zero subgroup
- 振子群oscillator group
- 波萊爾子群borel subgroup
- 不連續子群discontinuous subgroup
- CCP子群CCP-subgroup
- 極大緊子群maximal compact subgroup
- 極大撓子群maximal torsion subgroup
- 緊子群compact subgroup
