Difference between revisions of "ApCoCoA-1:BB.GenHomMultMat"

From ApCoCoAWiki
(second element)
(new alias)
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<command>
 
<command>
     <title>borderbasis.GenHomMultMat</title>
+
     <title>BB.GenHomMultMat</title>
 
     <short_description>generic homogeneous multiplication matrix</short_description>
 
     <short_description>generic homogeneous multiplication matrix</short_description>
 
<syntax>
 
<syntax>
$borderbasis.GenHomMultMat(I:INT,OO:LIST):MAT
+
BB.GenHomMultMat(I:INT,OO:LIST):MAT
 
</syntax>
 
</syntax>
 
     <description>
 
     <description>
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     </description>
 
     </description>
 
     <key>kreuzer</key>
 
     <key>kreuzer</key>
 +
    <key>bb.genhommultmat</key>
 
     <key>borderbasis.genhommultmat</key>
 
     <key>borderbasis.genhommultmat</key>
 
     <wiki-category>Package_borderbasis</wiki-category>
 
     <wiki-category>Package_borderbasis</wiki-category>
 
</command>
 
</command>

Revision as of 19:46, 8 November 2007

BB.GenHomMultMat

generic homogeneous multiplication matrix

Syntax

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

Description

Computes the generic homogeneous 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>.