|
7.7.3.0. annfsRB
Procedure from library dmod.lib (see dmod_lib).
- Usage:
- annfsRB(I, F [,eng]); I an ideal, F a poly, eng an optional int
- Return:
- ring
- Purpose:
- compute the annihilator ideal of f^s in the Weyl Algebra,
based on the output of Sannfs like procedure
- Note:
- activate the output ring with the
setring command. In this ring,
- the ideal LD (which is a Groebner basis) is the annihilator of f^s,
- the list BS contains the roots with multiplicities of a Bernstein polynomial of f.
If eng <>0, std is used for Groebner basis computations,
otherwise and by default slimgb is used.
This procedure uses in addition to F its Jacobian ideal.
- Display:
- If
printlevel =1, progress debug messages will be printed,
if printlevel >=2, all the debug messages will be printed.
Example:
|