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D.6.12.1 ArnoldAction

Procedure from library qhmoduli.lib (see qhmoduli_lib).

Usage:
ArnoldAction(f, [Gf, B]); poly f; list Gf, B;
'Gf' is a list of two rings (coming from 'StabEqn')

Purpose:
compute the induced action of the stabilizer G of f on T_, where T_ is given by the upper monomials B of the Milnor algebra of f.

Assume:
f is quasihomogeneous

Return:
polynomial ring over the same ground field, containing the ideals 'actionid' and 'stabid'.
- 'actionid' is the ideal defining the induced action of Gf on T_
- 'stabid' is the ideal of the stabilizer Gf in the new ring

Example:
 


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            User manual for Singular version 3-1-6, Dec 2012, generated by texi2html.