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D.6.16.3 signatureNemethi
Procedure from library surfacesignature.lib (see surfacesignature_lib).
- Usage:
- signatureNemethi(N,f); N = integer, f = reduced poly in 2 variables,
# empty or 1,2,3
- if #[1] = 1 then resolution of singularity is used
- if #[1] = 2 then spectral pairs are used
- if # is empty then both upper variants are used in parallel and the
fastest returns the result
- Return:
- signature of surface singularity defined by z^N + f(x,y) = 0
- Remark:
- computes the signature of some special surface singularities
Example:
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