GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
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DeclareCategory("IsHapGComplexMap",IsObject);
DeclareRepresentation( "IsHapGComplexMapRep",
IsComponentObjectRep,
["source",
"target",
"mapping",
"properties"]);
HapGComplexMapFamily:=NewFamily( "HapGComplexMapFamily",
IsHapGComplexMap,
IsHapGComplexMap);
HapGComplexMap:=NewType(HapGComplexMapFamily, IsHapGComplexMapRep);
InstallMethod( ViewObj,
"for HapGComplexMap",
[IsHapGComplexMap],
function(R)
Print("GComplex Map between complexes of length ",
Minimum(EvaluateProperty(R!.source,"length"),
EvaluateProperty(R!.target,"length")), " . \n");
end);
InstallMethod( PrintObj,
"for HapGComplexMap",
[IsHapGComplexMap],
function(R)
Print("GComplex Map between complexes of length ",
Minimum(EvaluateProperty(R!.source,"length"),
EvaluateProperty(R!.target,"length")), " . \n");
end);
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DeclareGlobalFunction("HomToGModule_hom");
DeclareGlobalFunction("CohomologyModule_Gmap");
DeclareGlobalFunction("CommonEndomorphisms");
DeclareGlobalFunction("CohomologyModule_AsAutModule");