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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

Paris 7-2-01 http://www.singular.uni-kl.de