Outline

Overview

Ext

Primdec

Normalize

MuPAD

Deform

Classify

Puiseux

Future

Ak Singularities


Ak: x1k+1 + x22 + x32 + ... + xn2 , k >= 1

Real Pictures: n=3; x22-(x12-x3k+1)=0
A1 A2 A3 A4
Dynkin Diagram:
Dk, Ek

ICM'98 http://www.mathematik.uni-kl.de/~zca/Singular