| Singularity types | \(K^2\) | Orders of local fundamental groups |
Local indices | Index |
|---|---|---|---|---|
| [2, 2, 2], [3, 2, 3], [2, 3, 2] | 3/2 | 4, 12, 8 | 1, 2, 4 | 4 |
| \(\downarrow\) | ||||
| [2, 2], [2, 2, 3], [2, 3, 2] | 27/14 | 3, 7, 8 | 1, 7, 4 | 28 |
| \(\downarrow\) | ||||
| [2, 2], [2, 2, 2], [3, 2] | 12/5 | 3, 4, 5 | 1, 1, 5 | 5 |
| \(\downarrow\) | ||||
| [2, 2], [2, 2], [2, 2] | 3 | 3, 3, 3 | 1, 1, 1 | 1 |