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<a accesskey="1" href="page.php?w=Hypercube_graph&amp;p=2">1.Previous</a><br />
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<p>of an -element set, with two vertices adjacent when their subsets differ in a single element, or by creating a vertex for each -digit <a href="page.php?w=binary_number">binary number</a>, with two vertices adjacent when their binary representations differ in a single digit. It is the -fold <a href="page.php?w=Cartesian_product_of_graphs">Cartesian product</a> of the two-vertex <a href="page.php?w=complete_graph">complete graph</a>, and may be decomposed into two copies of  connected to each other by a <a href="page.php?w=perfect_matching">perfect matching</a>.</p><p>
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