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

Singularity types \(K^2\) Orders of local
fundamental groups
Local indices Index
[2, 2, 2, 2, 2, 2, 2, 2, 2], [4, 4] 2/3 10, 15 1, 3 3
\(\downarrow\)
[2, 2, 2, 2], [2, 2, 2, 2], [4, 4] 5/3 5, 5, 15 1, 1, 3 3
\(\downarrow\)
[2, 2, 2], [2, 2, 2, 2], [3, 4] 20/11 4, 5, 11 1, 1, 11 11
\(\downarrow\)
[2, 2], [2, 2, 2, 2], [2, 4] 15/7 3, 5, 7 1, 1, 7 7
\(\downarrow\)
[2, 2], [2, 2, 2], [2, 3] 12/5 3, 4, 5 1, 1, 5 5
\(\downarrow\)
[2, 2], [2, 2], [2, 2] 3 3, 3, 3 1, 1, 1 1