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<p>which has been a fruitful source of graph-theoretic results.</p>

<p><big> Subareas </big></p>
<p><big> Topological graph theory </big></p>
<p><a href="page.php?w=Topological_graph_theory">Topological graph theory</a> deals with the study of graphs as <a href="page.php?w=topological_space">topological space</a>s. The graph in a topology is a set of <a href="page.php?w=simplex">simplexes</a> that is called the <a href="page.php?w=Simplicial_complex">simplicial one-dimensional complex</a>. This subarea studies the <a href="page.php?w=Graph_embedding">embedding</a> (or</p><p>
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