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<p><b>Convex optimization</b> is a subfield of <a href="page.php?w=mathematical_optimization">mathematical optimization</a> that studies the problem of minimizing <a href="page.php?w=convex_function">convex function</a>s over <a href="page.php?w=convex_set">convex set</a>s (or, equivalently, maximizing <a href="page.php?w=concave_functions">concave functions</a> over convex sets).  Many classes of convex optimization problems admit polynomial-time algorithms, whereas mathematical optimization is in general <a href="page.php?w=NP-hard">NP-hard</a>.</p><p>
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