Package sagbi/SB.GetTruncSAGBI

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< Package sagbi
Revision as of 14:52, 26 October 2020 by Andraschko (talk | contribs) (upsi!)
This article is about a function from ApCoCoA-2.


This function returns a truncated SAGBI basis of a given standard-graded subalgebra.


SB.GetTruncSAGBI(ref S: TAGGED(<quotes>$apcocoa/sagbi.Subalgebra</quotes>), d: INT): LIST of POLY


This function takes a subalgebra S generated by homogeneous polynomials as a reference, computes a d-truncated SAGBI basis, returns it and saves it into S if the function wasn't called previously. If the function was called previously on the same subalgebra with the same or a higher truncation degree d, then it just returns the truncated SAGBI basis of S.

  • @param S A subalgebra

  • @param d A positive integer

  • @return A d-truncated SAGBI basis of S



See also

HowTo:Call by Reference

HowTo:Term Orderings

Package sagbi/SB.GetTruncDeg

Package sagbi/SB.TruncSAGBI

Package sagbi/SB.GetID

Package sagbi/SB.GetRing

Package sagbi/SB.GetGens

Package sagbi/SB.GetCoeffRing

Package sagbi/SB.GetSAGBI

Package sagbi/SB.GetLTSA

Package sagbi/SB.GetInDeg

Package sagbi/SB.GetHS