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<a accesskey="1" href="page.php?w=algebraic_graph_theory&amp;p=9">1.Previous</a><br />
<a accesskey="3" href="page.php?w=algebraic_graph_theory&amp;p=11">3.Next</a>
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<p>However, there are still many <a href="page.php?w=Graph_coloring">open problems</a>, such as characterizing graphs which have the same chromatic polynomial, and determining which polynomials are chromatic.</p>

<p><big>See also</big></p>
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*<a href="page.php?w=Spectral_graph_theory">Spectral graph theory</a><br/>
*<a href="page.php?w=Algebraic_combinatorics">Algebraic combinatorics</a><br/>
*<a href="page.php?w=Algebraic_connectivity">Algebraic connectivity</a><br/>
*<a href="page.php?w=Dulmage-Mendelsohn_decomposition">Dulmage-Mendelsohn decomposition</a><br/></p><p>
<a accesskey="1" href="page.php?w=algebraic_graph_theory&amp;p=9">1.Previous</a><br />
<a accesskey="3" href="page.php?w=algebraic_graph_theory&amp;p=11">3.Next</a>
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