- Classification of simple finite groups | 86, 133, 3
- Classification of finite groups | 71, 312, 5
- Normal subgroup | 143, 503, 7
- Quotient group | 45, 916, 10
- Subgroup | 0, 916, 12
- Group | 0, 2k, 47
- Algebra | 0, 2k, 65
- Mathematics | 17, 10k, 239
- Ciro Santilli's Homepage | 238, 147k, 2k