Cascade for [2, 2], [2, 4], [3, 2, 2, 2, 3]

Singularity types \(K^2\) Orders of local
fundamental groups
Local indices Index
[2, 2], [3, 2, 2, 2, 3], [2, 4] 15/7 3, 20, 7 1, 2, 7 14
\(\downarrow\)
[2], [2, 2, 2, 2, 3], [2, 4] 200/77 2, 11, 7 1, 11, 7 77
\(\downarrow\)
[2], [2, 2, 2, 2, 2], [4] 3 2, 6, 4 1, 1, 2 2
\(\downarrow\)
[2], [2, 2, 2, 2], [3] 10/3 2, 5, 3 1, 1, 3 3
\(\downarrow\)
[2], [2, 2, 2], [2] 4 2, 4, 2 1, 1, 1 1