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D.15.10 surfacesignature_lib

Library:
surfacesignature.lib
Purpose:
signature of surface singularity

Authors:
Gerhard Pfister pfister@mathematik.uni-kl.de
Muhammad Ahsan Banyamin ahsanbanyamin@gmail.com
Stefan Steidel steidel@mathematik.uni-kl.de

Overview:
A library for computing the signature of irreducible surface singularity. The signature of a surface singularity is defined in [Durfee, A.: The Signature of Smoothings of Complex Surface Singularities, Math. Ann., 232, 85-98 (1978)]. The algorithm we use has been proposed in [Nemethi, A.: The signature of f(x,y)+z^N, Proceedings of Singularity Conference (C.T.C. Wall's 60th birthday meeting), Liverpool 1996, London Math.Soc. LN 263(1999), 131-149].

Procedures:

D.15.10.1 brieskornSign  signature of Brieskorn singularity x^a1+y^a2+z^a3
D.15.10.2 signature  signature of singularity z^N+f(x,y)=0, f irreducible


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