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<!-- File Concatenator -->
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<refentry id="man-censuslookup">
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<refentrytitle>censuslookup</refentrytitle>
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<manvolnum>1</manvolnum>
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<refname>censuslookup</refname>
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<refpurpose>Search for triangulations in ®ina;'s census databases</refpurpose>
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<command>censuslookup</command>
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<arg rep="repeat" choice="req"><replaceable>isosig</replaceable></arg>
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<title>Description</title>
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This utility searches for the given 3-manifold triangulations in the various
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census databases that are shipped with®ina;.
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You should present the trianguations using their <firstterm>isomorphism
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signatures</firstterm>. These are short text strings that identify
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the triangulation uniquely up to combinatorial isomorphism
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(i.e., up to relabellings of the tetrahedra and/or their vertices).
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From the graphical user interface, you can view the isomorphism signature
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of a triangulation by switching to the <guilabel>Composition</guilabel>
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tab in the triangulation viewer. From &python; you can fetch the
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isomorphism signature of the triangulation <userinput>x</userinput>
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by calling <userinput>x.isoSig()</userinput>.
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For a full and precise specification of isomorphism signatures, see
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<emphasis>Simplification paths in the Pachner graphs of closed
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orientable 3-manifold triangulations</emphasis>, Burton, 2011,
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All database matches (if any) will be written to standard output.
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<title>Example</title>
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<prompt>example$</prompt> <userinput>censuslookup fvPQcdecedekrsnrs dLQbcccajqs cPcbbbiht</userinput>
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fvPQcdecedekrsnrs: 1 hit
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SFS [S2: (2,1) (3,1) (5,-4)] : #1 -- Closed census (orientable)
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m004 : #1 -- Cusped hyperbolic census (orientable)
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L104001 -- Hyperbolic knot and link complements
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<prompt>example$</prompt>
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<title>&macosx; Users</title>
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If you downloaded a drag-and-drop app bundle, this utility is
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shipped inside it. If you dragged ®ina; to the main
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<guilabel>Applications</guilabel> folder, you can run it as
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<literal>/Applications/Regina.app/Contents/MacOS/censuslookup</literal>.
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<title>&windows; Users</title>
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The command-line utilities are installed beneath the
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<filename>Program Files</filename> directory; on some
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machines this directory is called
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<filename>Program Files (x86)</filename>.
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You can start this utility by running
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<literal>c:\Program Files\Regina\Regina ®version;\bin\censuslookup.exe</literal>.
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<title>See Also</title>
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<link linkend="man-regina-gui">regina-gui</link>.
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<link linkend="man-trisetcmp">trisetcmp</link>,
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<title>Author</title>
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This utility was written by Benjamin Burton <email>bab@debian.org</email>.
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<refentry id="man-regconcat">
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<refentrytitle>regconcat</refentrytitle>
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<term><option>-h, --minhyp</option></term>
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Do not include triangulations that are obviously not
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minimal ideal triangulations of cusped finite-volume hyperbolic
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This can significantly speed up the census and vastly
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reduce the final number of triangulations produced.
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As above, this option uses a series of fast tests that are not
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If ®ina; cannot quickly tell whether a triangulation is a
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minimal ideal triangulation of a cusped finite-volume hyperbolic
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it will place the triangulation in the census regardless.
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This option is designed for use with ideal triangulations only
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(so, for instance, combining it with
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<option>--finite</option> or <option>--boundary</option>
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will produce an error message).
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This option also cannot be used with <option>--dim2</option>.
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<term><option>-s, --sigs</option></term>
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<arg><option>-m, --minimal</option></arg>
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<arg><option>-M, --minprime</option></arg>
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<arg><option>-N, --minprimep2</option></arg>
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<arg><option>-h, --minhyp</option></arg>
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<arg><option>-s, --sigs</option></arg>
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<arg choice="req"><replaceable>pairs-file</replaceable></arg>
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qtui/doc/regina/utils.docbook
