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GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it

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<?xml version="1.0" encoding="UTF-8"?>

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<!DOCTYPE Book SYSTEM "gapdoc.dtd"

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    [ <!ENTITY Circle "<Package>Circle</Package>">

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      <#Include Label="PKGVERSIONDATA">      

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    ] >

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<Book Name="Circle">

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<TitlePage>

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  <Title>&Circle;</Title>

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  <Subtitle>Adjoint groups of finite rings</Subtitle>

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  <Version>Version &VERSION;</Version>

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  <Author>Alexander Konovalov

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          <Email>[email protected]</Email>

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	      <Homepage>http://www.cs.st-andrews.ac.uk/&tilde;alexk/</Homepage>

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          <Address>

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            School of Computer Science<Br/>

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            University of St Andrews<Br/>

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            Jack Cole Building, North Haugh,<Br/>

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            St Andrews, Fife, KY16 9SX, Scotland

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          </Address> 

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  </Author>

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  <Author>Panagiotis Soules

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          <Email>[email protected]</Email>

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          <Address>

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            Department of Mathematics<Br/>

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            National and Capodistrian University of Athens<Br/>

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            Panepistimioupolis, GR-15784, Athens, Greece

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          </Address>        

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  </Author>

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  <Date>&RELEASEDATE;</Date>

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<Abstract>

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<Index Key="Circle package">&Circle; package</Index> 

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The &GAP;4 package &Circle; extends the &GAP; functionality 

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for computations in adjoint groups of associative rings.

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It provides functionality to construct circle objects that will 

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respect the circle multiplication <M> r \cdot s = r + s + rs </M>, 

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and to compute adjoint semigroups and adjoint groups of finite rings.

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Also it may serve as an example of extending the &GAP; system with 

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new multiplicative objects. 

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<P/>

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</Abstract>

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<Copyright>

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&copyright; 2006-&RELEASEYEAR; by Alexander Konovalov and Panagiotis Soules

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<P/>

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&Circle; is free software; you can redistribute it and/or modify it 

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under the terms of the GNU General Public License as published by 

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the Free Software Foundation; either version 2 of the License, or 

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(at your option) any later version. For details, see the FSF's own site

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<URL>http://www.gnu.org/licenses/gpl.html</URL>.

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<P/>

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If you obtained &Circle;, we would be grateful for a short notification

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sent to one of the authors.

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<P/>

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If you publish a result which was partially obtained with the usage of

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&Circle;, please cite it in the following form:

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<P/>

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A. Konovalov, P. Soules. 

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<E>Circle --- Adjoint groups of finite rings, Version &VERSION;;</E> 

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&RELEASEYEAR; (<URL>http://www.cs.st-andrews.ac.uk/&tilde;alexk/circle/</URL>).

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</Copyright>

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<Acknowledgements>

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We acknowledge very much Alexander Hulpke and James Mitchell 

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for their helpful comments and advices, and the referee for 

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testing the package and useful suggestions.

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<P/> 

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</Acknowledgements>

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</TitlePage>

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<TableOfContents/>

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<Body>

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<#Include SYSTEM "intro.xml">

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<#Include SYSTEM "objects.xml">

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<#Include SYSTEM "funct.xml">

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<#Include SYSTEM "example.xml">

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</Body>

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<Bibliography Databases="manual"/>

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<TheIndex/>

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</Book>

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