Outline
Examples
Ext
Primdec
Normalize
MuPAD
Deform
Classify
Monodromy
Kodaira
Puiseux
A
k
Singularities
A
k
:
x
1
k+1
+ x
2
2
+ x
3
2
+ ... + x
n
2
,
k >= 1
Real Pictures: n=3;
x
2
2
-(
x
1
2
-x
3
k+1
)
=0
A
1
A
2
A
3
A
4
Dynkin Diagram:
D
k
,
E
k
Hannover
http://www.singular.uni-kl.de