Top
Back: diagInvariants
Forward: intersectionValRingIdeals
FastBack:
FastForward:
Up: normaliz_lib
Top: Singular Manual
Contents: Table of Contents
Index: Index
About: About this document

D.4.24.13 intersectionValRings

Procedure from library normaliz.lib (see normaliz_lib).

Usage:
intersectionValRings(intmat V, intvec grading);

Return:
The function returns a monomial ideal, to be considered as the list of monomials generating as an algebra over the coefficient field.

Background:


The function returns the ideal given by the input matrix V if one of the options supp, triang, volume, or hseries 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).

Example:
 
LIB "normaliz.lib";
ring R=0,(x,y,z,w),dp;
intmat V0[2][4]=0,1,2,3, -1,1,2,1;
intersectionValRings(V0);
==> _[1]=w
==> _[2]=z
==> _[3]=y
==> _[4]=xw
==> _[5]=xz
==> _[6]=xy
==> _[7]=x2z
See also: diagInvariants; finiteDiagInvariants; intersectionValRingIdeals; torusInvariants.


Top Back: diagInvariants Forward: intersectionValRingIdeals FastBack: FastForward: Up: normaliz_lib Top: Singular Manual Contents: Table of Contents Index: Index About: About this document
            User manual for Singular version 4.4.0, 2024, generated by texi2html.