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<html><head><title>aclib : a GAP 4 package - Index </title></head>
<body text="#000000" bgcolor="#ffffff">
<h1><font face="Gill Sans,Helvetica,Arial">aclib</font> : a <font face="Gill Sans,Helvetica,Arial">GAP</font> 4 package - Index </h1>
<p>
<a href="#idxA">A</A>
<a href="#idxB">B</A>
<a href="#idxD">D</A>
<a href="#idxE">E</A>
<a href="#idxH">H</A>
<a href="#idxI">I</A>
<a href="#idxM">M</A>
<a href="#idxN">N</A>
<a href="#idxO">O</A>
<a href="#idxP">P</A>
<a href="#idxR">R</A>
<a href="#idxT">T</A>
<H2><A NAME="idxA">A</A></H2>
<dl>
<dt>Algorithms for almost crystallographic groups <a href="CHAP002.htm">2.0</a>
<dt>AlmostCrystallographicDim3 <a href="CHAP003.htm#SSEC001.1">3.1.1</a>
<dt>AlmostCrystallographicDim4 <a href="CHAP003.htm#SSEC001.1">3.1.1</a>
<dt>AlmostCrystallographicGroup <a href="CHAP003.htm#SSEC001.1">3.1.1</a>
<dt>AlmostCrystallographicInfo <a href="CHAP003.htm#SSEC003.1">3.3.1</a>
<dt>AlmostCrystallographicPcpDim3 <a href="CHAP003.htm#SSEC002.1">3.2.1</a>
<dt>AlmostCrystallographicPcpDim4 <a href="CHAP003.htm#SSEC002.1">3.2.1</a>
<dt>AlmostCrystallographicPcpGroup <a href="CHAP003.htm#SSEC002.1">3.2.1</a>
</dl><p>
<H2><A NAME="idxB">B</A></H2>
<dl>
<dt>Betti numbers <a href="CHAP002.htm#SECT002">2.2</a>
<dt>BettiNumber <a href="CHAP002.htm#SSEC002.2">2.2.2</a>
<dt>BettiNumbers <a href="CHAP002.htm#SSEC002.3">2.2.3</a>
</dl><p>
<H2><A NAME="idxD">D</A></H2>
<dl>
<dt>Determination of certain extensions <a href="CHAP002.htm#SECT003">2.3</a>
</dl><p>
<H2><A NAME="idxE">E</A></H2>
<dl>
<dt>Example computations I <a href="CHAP004.htm#SECT001">4.1</a>
<dt>Example computations II <a href="CHAP004.htm#SECT002">4.2</a>
<dt>Example computations III <a href="CHAP004.htm#SECT003">4.3</a>
<dt>Example computations with almost crystallographic groups <a href="CHAP004.htm">4.0</a>
</dl><p>
<H2><A NAME="idxH">H</A></H2>
<dl>
<dt>HasExtensionOfType <a href="CHAP002.htm#SSEC003.1">2.3.1</a>
<dt>HolonomyGroup <a href="CHAP003.htm#SSEC002.3">3.2.3</a>
</dl><p>
<H2><A NAME="idxI">I</A></H2>
<dl>
<dt>IsAlmostBieberbachGroup <a href="CHAP002.htm#SSEC001.2">2.1.2</a>
<dt>IsAlmostCrystallographic <a href="CHAP002.htm#SSEC001.1">2.1.1</a>
<dt>IsomorphismPcpGroup <a href="CHAP003.htm#SSEC002.2">3.2.2</a>
</dl><p>
<H2><A NAME="idxM">M</A></H2>
<dl>
<dt>More about almost crystallographic groups <a href="CHAP001.htm#SECT001">1.1</a>
<dt>More about the type and the defining parameters <a href="CHAP003.htm#SECT003">3.3</a>
</dl><p>
<H2><A NAME="idxN">N</A></H2>
<dl>
<dt>NaturalHomomorphismOnHolonomyGroup <a href="CHAP003.htm#SSEC002.3">3.2.3</a>
</dl><p>
<H2><A NAME="idxO">O</A></H2>
<dl>
<dt>OrientationModule <a href="CHAP002.htm#SSEC002.1">2.2.1</a>
</dl><p>
<H2><A NAME="idxP">P</A></H2>
<dl>
<dt>Polycyclically presented groups <a href="CHAP003.htm#SECT002">3.2</a>
<dt>Properties of almost crystallographic groups <a href="CHAP002.htm#SECT001">2.1</a>
</dl><p>
<H2><A NAME="idxR">R</A></H2>
<dl>
<dt>Rational matrix groups <a href="CHAP003.htm#SECT001">3.1</a>
</dl><p>
<H2><A NAME="idxT">T</A></H2>
<dl>
<dt>The Almost Crystallographic Groups Package <a href="CHAP001.htm">1.0</a>
<dt>The catalog of almost crystallographic groups <a href="CHAP003.htm">3.0</a>
<dt>The electronic versus the printed library <a href="CHAP003.htm#SECT004">3.4</a>
</dl><p>
[<a href="chapters.htm">Up</a>]<p>
<P>
<address>aclib manual<br>August 2025
</address></body></html>
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