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D.6.11.4 monodromyB
Procedure from library mondromy.lib (see mondromy_lib).
- Usage:
- monodromyB(f[,opt]); f poly, opt int
- Assume:
- The polynomial f in a series ring (local ordering) defines
an isolated hypersurface singularity.
- Return:
- The procedure returns a residue matrix M of the meromorphic
Gauss-Manin connection of the singularity defined by f
or an empty matrix if the assumptions are not fulfilled.
If opt=0 (default), exp(-2*pi*i*M) is a monodromy matrix of f,
else, only the characteristic polynomial of exp(-2*pi*i*M) coincides
with the characteristic polynomial of the monodromy of f.
- Display:
- The procedure displays more comments for higher printlevel.
Example:
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