CoCalc -- LinearSyzygies.g

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GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it

Project: cocalc-sagemath-dev-slelievre

Path: gap4r8 / pkg / GradedRingForHomalg-2017.09.02 / examples / LinearSyzygies.g

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LoadPackage( "RingsForHomalg" );

R := HomalgFieldOfRationalsInDefaultCAS( ) * "x0,x1";

LoadPackage( "GradedRingForHomalg" );

R := GradedRing( R );

A := KoszulDualRing( R );

m := HomalgMatrix( "[ e0, e1, 0,  0, e0, e1 ]", 2, 3, A );