GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
<?xml version="1.0" encoding="UTF-8"?>12<!--34RingMaps.xml MatricesForHomalg package documentation Mohamed Barakat56Copyright (C) 2009, Mohamed Barakat, Universität des Saarlandes78-->910<Chapter Label="RingMaps">11<Heading>Ring Maps</Heading>1213<#Include Label="RingMaps:intro">1415<Section Label="RingMaps:">16<Heading>Ring Maps: Category and Representations</Heading>1718<#Include Label="IsHomalgRingMap">19<#Include Label="IsHomalgRingSelfMap">2021<#Include Label="IsHomalgRingMapRep">2223</Section>2425<Section Label="RingMaps:Constructors">26<Heading>Ring Maps: Constructors</Heading>2728<#Include Label="RingMap">2930</Section>3132<Section Label="RingMaps:Properties">33<Heading>Ring Maps: Properties</Heading>3435<#Include Label="IsMorphism:ringmap">36<#Include Label="IsIdentityMorphism:ringmap">37<#Include Label="IsMonomorphism:ringmap">38<#Include Label="IsEpimorphism:ringmap">39<#Include Label="IsIsomorphism:ringmap">40<#Include Label="IsAutomorphism:ringmap">4142</Section>4344<Section Label="RingMaps:Attributes">45<Heading>Ring Maps: Attributes</Heading>4647<#Include Label="Source:ringmap">48<#Include Label="Range:ringmap">49<#Include Label="DegreeOfMorphism:ringmap">50<#Include Label="CoordinateRingOfGraph">5152</Section>5354<Section Label="RingMaps:Operations and Functions">55<Heading>Ring Maps: Operations and Functions</Heading>5657</Section>5859<!-- ############################################################ -->6061</Chapter>626364