Outline
Examples
Ext
Primdec
Normalize
MuPAD
Deform
Classify
Monodromy
Kodaira
Puiseux
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Classification of Singularities
Task: Classify singularities w.r.t. Arnold's
classification scheme.
For example, decide whether a singularity is one of the Kleinian (also
refered to as simple or ADE) singularities which are given by the
following normal forms:
Ak: |
x1k+1
+ x22
+ x32
+ ... +
xn2
, |
k >= 1 |
Dk: |
x1(x1k-2 +
x22)
+x32
+ ... +
xn2
, |
k >= 4 |
E6: |
x14
+ x23
+ x32
+ ... +
xn2
|
|
E7: |
x2(x13 +
x22)
+x32
+ ... +
xn2
|
|
E8: |
x15
+ x23
+ x32
+ ... +
xn2
|
|
|