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LoadPackage( "RingsForHomalg" );
LoadPackage( "Modules" );
Zx := HomalgRingOfIntegersInDefaultCAS( ) * "x";
ZC6 := Zx / "x^6 - 1";
zz := HomalgMatrix( "[ x - 1 ]", 1, 1, ZC6 );
zz := LeftPresentation( zz );
ext := Ext( 6, zz, zz, "a" );
ByASmallerPresentation( ext );
zt := HomalgMatrix( "[ x^2 - x + 1 ]", 1, 1, ZC6 );
ZT := LeftPresentation( zt );
extt := Ext( 6, zz, ZT, "a" );
ByASmallerPresentation( extt );
[ Dauer der Verarbeitung: 0.14 Sekunden
(vorverarbeitet)
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