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D.4.16.10 intersectionValRingIdeals
Procedure from library normaliz.lib (see normaliz_lib).
- Usage:
- intersectionValRingIdeals(intmat V);
intersectionValRingIdeals(intmat V, intvec grading);
- Return:
- The function returns two ideals, both to be considered as lists of
monomials. The
first is the system of monomial generators of
, the second
the system of generators of
.
The function returns a list consisting of the ideal given by the
input matrix T if one of the options supp , triang , or
hvect has been activated.
However, in this case some numerical invariants are computed, and
some other data may be contained in files that you can read into
Singular (see showNuminvs, exportNuminvs).
- Background:
- Note:
- The function also gives an error message if the matrix V has the
wrong number of columns.
Example:
See also:
diagInvariants;
finiteDiagInvariants;
intersectionValRings;
torusInvariants.
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