# SPDX-License-Identifier: GPL-2.0-or-later
# LocalizeRingForHomalg: A Package for Localization of Polynomial Rings
#
# Declarations
#
## Declarations of procedures for localized rings.
####################################
#
# attributes:
#
####################################
## <#GAPDoc Label="GeneratorsOfMaximalLeftIdeal">
## <ManSection>
## <Attr Arg="R" Name="GeneratorsOfMaximalLeftIdeal"/>
## <Returns>a &homalg; matrix</Returns>
## <Description>
## Returns the generators of the maximal ideal, at which R was created. The generators are given as a column over the associated global ring.
## </Description>
## </ManSection>
## <#/GAPDoc>
##
DeclareAttribute( "GeneratorsOfMaximalLeftIdeal",
IsHomalgRing );
## <#GAPDoc Label="GeneratorsOfMaximalRightIdeal">
## <ManSection>
## <Attr Arg="R" Name="GeneratorsOfMaximalRightIdeal"/>
## <Returns>a &homalg; matrix</Returns>
## <Description>
## Returns the generators of the maximal ideal, at which R was created. The generators are given as a row over the associated global ring.
## </Description>
## </ManSection>
## <#/GAPDoc>
##
DeclareAttribute( "GeneratorsOfMaximalRightIdeal",
IsHomalgRing );
####################################
#
# global functions and operations:
#
####################################
# constructor methods:
DeclareOperation( "LocalizeAt",
[ IsHomalgRing, IsList ] );
DeclareOperation( "LocalizeAtZero",
[ IsHomalgRing ] );
DeclareGlobalFunction( "HomalgLocalRingElement" );
DeclareOperation( "BlindlyCopyMatrixPropertiesToLocalMatrix",
[ IsHomalgMatrix, IsHomalgMatrix ] );
DeclareOperation( "HomalgLocalMatrix",
[ IsHomalgMatrix, IsRingElement, IsHomalgRing ] );
DeclareOperation( "HomalgLocalMatrix",
[ IsHomalgMatrix, IsHomalgRing ] );
# basic operations:
DeclareOperation( "AssociatedComputationRing",
[ IsHomalgRing ] );
DeclareOperation( "AssociatedComputationRing",
[ IsHomalgRingElement ] );
DeclareOperation( "AssociatedComputationRing",
[ IsHomalgMatrix ] );
DeclareOperation( "AssociatedGlobalRing",
[ IsHomalgRing ] );
DeclareOperation( "AssociatedGlobalRing",
[ IsHomalgRingElement ] );
DeclareOperation( "AssociatedGlobalRing",
[ IsHomalgMatrix ] );
DeclareOperation( "Cancel",
[ IsRingElement, IsRingElement ] );
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