# Difference between revisions of "ApCoCoA-1:BB.GenMultMat"

From ApCoCoAWiki

m (ApCoCoA:Borderbasis.GenMultMat moved to ApCoCoA:BB.GenMultMat: new alias) |
(Short description update.) |
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<command> | <command> | ||

<title>BB.GenMultMat</title> | <title>BB.GenMultMat</title> | ||

− | <short_description>generic multiplication matrix</short_description> | + | <short_description>Compute a generic multiplication matrix.</short_description> |

<syntax> | <syntax> | ||

BB.GenMultMat(I:INT,OO:LIST):MAT | BB.GenMultMat(I:INT,OO:LIST):MAT |

## Revision as of 16:22, 21 April 2009

## BB.GenMultMat

Compute a generic multiplication matrix.

### Syntax

BB.GenMultMat(I:INT,OO:LIST):MAT

### Description

Computes the generic multiplication matrix for <formula>x[I]</formula> with respect to an order ideal. The inputs are an integer I and a list OO of terms that specify an order ideal. The second element of OO must be a non-constant polynomial. The output is a matrix of size <formula>Mu<times/>Mu</formula> over the ring <formula>BBS=K[c_{ij}]</formula>.