GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
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##
## GradedStructureFunctors.gd Graded Modules package
##
## Copyright 2007-2011, Mohamed Barakat, University of Kaiserslautern
## Markus Lange-Hegermann, RWTH Aachen
##
## Declaration stuff for some other graded functors.
##
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DeclareOperation( "GeneratorsOfHomogeneousPart",
[ IsInt, IsHomalgModule ] );
DeclareOperation( "GeneratorsOfHomogeneousPart",
[ IsHomalgElement, IsHomalgModule ] );
## RepresentationMapOfRingElement
DeclareOperation( "RepresentationMapOfRingElement",
[ IsRingElement, IsHomalgModule, IsInt ] );
DeclareOperation( "RepresentationMapOfRingElement",
[ IsRingElement, IsHomalgModule, IsHomalgElement ] );
DeclareGlobalFunction( "_Functor_RepresentationMapOfRingElement_OnGradedModules" );
DeclareGlobalFunction( "_Functor_RepresentationMapOfRingElement_OnGradedMaps" );
DeclareGlobalVariable( "Functor_RepresentationMapOfRingElement_ForGradedModules" );
## SubmoduleGeneratedByHomogeneousPart
DeclareOperation( "SubmoduleGeneratedByHomogeneousPart",
[ IsInt, IsHomalgModule ] );
DeclareOperation( "SubmoduleGeneratedByHomogeneousPart",
[ IsHomalgElement, IsHomalgModule ] );
DeclareGlobalFunction( "_Functor_SubmoduleGeneratedByHomogeneousPart_OnGradedModules" );
DeclareGlobalFunction( "_Functor_SubmoduleGeneratedByHomogeneousPart_OnGradedMaps" );
DeclareGlobalVariable( "Functor_SubmoduleGeneratedByHomogeneousPart_ForGradedModules" );
DeclareOperation( "SubmoduleGeneratedByHomogeneousPartEmbed",
[ IsInt, IsHomalgModule ] );
DeclareOperation( "SubmoduleGeneratedByHomogeneousPartEmbed",
[ IsHomalgElement, IsHomalgModule ] );
DeclareAttribute( "EmbeddingOfTruncatedModuleInSuperModule",
IsHomalgGradedModule );
## TruncatedSubmoduleEmbed
DeclareGlobalFunction( "_Functor_TruncatedModule_OnGradedModules" );
DeclareGlobalVariable( "Functor_TruncatedModule_ForGradedModules" );
DeclareOperation( "TruncatedSubmoduleEmbed",
[ IsInt, IsHomalgModule ] );
DeclareOperation( "TruncatedSubmoduleEmbed",
[ IsHomalgElement, IsHomalgModule ] );
DeclareOperation( "TruncatedSubmodule",
[ IsInt, IsHomalgModule ] );
DeclareOperation( "TruncatedSubmodule",
[ IsHomalgElement, IsHomalgModule ] );
DeclareOperation( "TruncatedModule",
[ IsInt, IsHomalgModule ] );
DeclareOperation( "TruncatedModule",
[ IsHomalgElement, IsHomalgModule ] );
# DeclareGlobalFunction( "_Functor_TruncatedSubmoduleEmbed_OnGradedModules" );
#
# DeclareGlobalFunction( "_Functor_TruncatedSubmoduleEmbed_OnGradedMaps" );
#
# DeclareGlobalVariable( "Functor_TruncatedSubmoduleEmbed_ForGradedModules" );
DeclareGlobalFunction( "_Functor_TruncatedSubmodule_OnGradedModules" );
DeclareGlobalFunction( "_Functor_TruncatedSubmodule_OnGradedMaps" );
DeclareGlobalVariable( "Functor_TruncatedSubmodule_ForGradedModules" );
## TruncatedSubmoduleRecursiveEmbed
DeclareOperation( "TruncatedSubmoduleRecursiveEmbed",
[ IsInt, IsHomalgModule ] );
DeclareOperation( "TruncatedSubmoduleRecursiveEmbed",
[ IsHomalgElement, IsHomalgModule ] );
DeclareGlobalFunction( "_Functor_TruncatedSubmoduleRecursiveEmbed_OnGradedModules" );
DeclareGlobalFunction( "_Functor_TruncatedSubmoduleRecursiveEmbed_OnGradedMaps" );
DeclareGlobalVariable( "Functor_TruncatedSubmoduleRecursiveEmbed_ForGradedModules" );
## HomogeneousPartOverCoefficientsRing
DeclareOperation( "RepresentationOfMorphismOnHomogeneousParts",
[ IsHomalgGradedMap, IsObject, IsObject ] );
DeclareOperation( "EmbeddingOfSubmoduleGeneratedByHomogeneousPart",
[ IsInt, IsHomalgGradedModule ] );
DeclareOperation( "EmbeddingOfSubmoduleGeneratedByHomogeneousPart",
[ IsHomalgElement, IsHomalgGradedModule ] );
DeclareOperation( "HomogeneousPartOverCoefficientsRing",
[ IsInt, IsHomalgGradedMap ] );
DeclareOperation( "HomogeneousPartOverCoefficientsRing",
[ IsHomalgElement, IsHomalgGradedMap ] );
DeclareOperation( "HomogeneousPartOverCoefficientsRing",
[ IsInt, IsHomalgGradedModule ] );
DeclareOperation( "HomogeneousPartOverCoefficientsRing",
[ IsHomalgElement, IsHomalgGradedModule ] );
DeclareGlobalFunction( "_Functor_HomogeneousPartOverCoefficientsRing_OnGradedModules" );
DeclareGlobalFunction( "_Functor_HomogeneousPartOverCoefficientsRing_OnGradedMaps" );
DeclareGlobalVariable( "Functor_HomogeneousPartOverCoefficientsRing_ForGradedModules" );
## HomogeneousPartOfDegreeZeroOverCoefficientsRing
DeclareOperation( "HomogeneousPartOfDegreeZeroOverCoefficientsRing",
[ IsHomalgGradedMap ] );
DeclareOperation( "HomogeneousPartOfDegreeZeroOverCoefficientsRing",
[ IsHomalgGradedModule ] );
DeclareGlobalFunction( "_Functor_HomogeneousPartOfDegreeZeroOverCoefficientsRing_OnGradedModules" );
DeclareGlobalFunction( "_Functor_HomogeneousPartOfDegreeZeroOverCoefficientsRing_OnGradedMaps" );
DeclareGlobalVariable( "Functor_HomogeneousPartOfDegreeZeroOverCoefficientsRing_ForGradedModules" );