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D.6.13.13 qhspectrum
Procedure from library sing.lib (see sing_lib).
- Usage:
- qhspectrum(f,w); f=poly, w=intvec
- Assume:
- f is a weighted homogeneous isolated singularity w.r.t. the weights
given by w; w must consist of as many positive integers as there
are variables of the basering
- Compute:
- the spectral numbers of the w-homogeneous polynomial f, computed in a
ring of characteristic 0
- Return:
- intvec d,s1,...,su where:
d = w-degree(f) and si/d = i-th spectral-number(f)
No return value if basering has parameters or if f is no isolated
singularity, displays a warning in this case.
Example:
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