appendix.xml

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  appendix.xml         GradedRingForHomalg package documentation               Mohamed Barakat
                                                                        Markus Lange-Hegermann

         Copyright (C) 2010, Mohamed Barakat, University of Kaiserslautern
                      Markus Lange-Hegermann, RWTH-Aachen University
-->

<Appendix Label="FileOverview">

<Heading>Overview of the &GradedRingForHomalg; Package Source Code</Heading>

  This appendix is included in the documentation to shine some light
  on the mathematical backgrounds of this Package. Neither is it
  needed to work with this package nor should the methods presented
  here be called directly. The functions documented here are entries
  of the so called ring table and not to be called directly. There are
  higher level methods in declared and installed in
  &MatricesForHomalg;, which call this functions
  (&see; <C>?MatricesForHomalg:The Basic Matrix Operations</C>).
  
  <Section Label="homalgTable:Generic">

     <Heading>The generic Methods</Heading>
     
     We will present some methods as an example, to show the idea:
     
     <#Include Label="BasisOfRowModule">
       
     <#Include Label="DecideZeroRows">
    
     <#Include Label="SyzygiesGeneratorsOfRows">
       

  </Section>
  
  <Section Label="GradedRing:Tools">
    
    <Heading>Tools</Heading>
    
    The package &GradedRingForHomalg; also implements tool
    functions. These are referred to from &MatricesForHomalg;
    automatically. We list the implemented methods here are and refer
    to the &MatricesForHomalg; documentation
    (&see; <C>?MatricesForHomalg: The Matrix Tool Operations</C>
    and <C>?MatricesForHomalg:RingElement</C>) for details. All tools
    functions from &MatricesForHomalg; not listed here are also
    supported by fallback tools.

    <List>
        <Item>IsZero</Item>
        <Item>IsOne</Item>
        <Item>Minus</Item>
        <Item>DivideByUnit</Item>
        <Item>IsUnit</Item>
        <Item>Sum</Item>
        <Item>Product</Item>
        <Item>ShallowCopy</Item>
        <Item>ZeroMatrix</Item>
        <Item>IdentityMatrix</Item>
        <Item>AreEqualMatrices</Item>
        <Item>Involution</Item>
        <Item>CertainRows</Item>
        <Item>CertainColumns</Item>
        <Item>UnionOfRows</Item>
        <Item>UnionOfColumns</Item>
        <Item>DiagMat</Item>
        <Item>KroneckerMat</Item>
        <Item>MulMat</Item>
        <Item>AddMat</Item>
        <Item>SubMat</Item>
        <Item>Compose</Item>
        <Item>NrRows</Item>
        <Item>NrColumns</Item>
        <Item>IsZeroMatrix</Item>
        <Item>IsDiagonalMatrix</Item>
        <Item>ZeroRows</Item>
        <Item>ZeroColumns</Item>
    </List>

  </Section>

</Appendix>