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

Singularity types \(K^2\) Orders of local
fundamental groups
Local indices Index
[2, 2, 2, 4], [2, 2, 2, 4], [2, 2, 2, 4] 9/13 13, 13, 13 13, 13, 13 13
\(\downarrow\)
[2, 2, 2, 3], [2, 2, 4], [2, 2, 2, 4] 512/585 9, 10, 13 9, 5, 13 585
\(\downarrow\)
[2, 2, 2, 2], [2, 4], [2, 2, 2, 4] 125/91 5, 7, 13 1, 7, 13 91
\(\downarrow\)
[2, 2, 2, 2], [2, 3], [2, 2, 4] 8/5 5, 5, 10 1, 5, 5 5
\(\downarrow\)
[2, 2, 2, 2], [2, 2], [2, 4] 15/7 5, 3, 7 1, 1, 7 7
\(\downarrow\)
[2, 2, 2], [2, 2], [2, 3] 12/5 4, 3, 5 1, 1, 5 5
\(\downarrow\)
[2, 2], [2, 2], [2, 2] 3 3, 3, 3 1, 1, 1 1