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<title>Summary</title>
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<p><big>The table contains the following data for each of the 45
nonabelian groups G of order at most 30:</big></p>
<ul>
<big> <li>the order |G| and, where appropriate, name of G.
</li>
<li>a 3-presentation <tt><<u>x</u>|<u>r</u>|<u>s</u>></tt> for
G. It is given using the convention that
<ul plain="">
<li> the first generator in <tt><u>x</u></tt> is denoted by <tt>x</tt>,
the second generator is denoted by <tt>y</tt>, the third generator (if
exists) is denoted by <tt>z</tt>; </li>
<li> the first relator in <tt><u>r</u></tt> is denoted by <tt>a</tt>,
the second relator is denoted by <tt>b</tt>, the third by <tt>c</tt>
and so on. </li>
</ul>
</li>
<li> the rank dim<sub><img src="tiny_z.uc.gif"></sub><img
src="pi.lc.gif"> of the free abelian group underling the module of
identities <img src="pi.lc.gif">=<img src="pi.lc.gif"><sub>2</sub>K(<tt><u>x</u></tt>,
<tt><u>r</u></tt>).
</li>
<li> a set <u>v</u> of elements in <img src="smearth.gif"><sub><tt><u>r</u></tt></sub>
<b>Z</b>G that generates a <b>Z</b>G-submodule <img
src="pi.lc.gif"><tt>'</tt> isomorphic to the <b>Z</b>G-module <img
src="pi.lc.gif">.
</li>
<li> the integral homology group H<sub>n</sub>(G)=H<sub>n</sub>(G,<b>Z</b>)
for n=1,2,3. </li>
</big>
</ul>
<big> </big>
<p><big><a href="help.html">How to use the table?</a>
</big></p>
<p><big><a href="table.html">The main table</a></big></p>
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Messung V0.5 in Prozent
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(vorverarbeitet am 2026-05-06)
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