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<p>and ? the <a href="page.php?w=formal_derivative">polynomial derivative</a>.  <a href="page.php?w=Ore_algebra">Ore algebra</a>s are a class of iterated Ore extensions under suitable constraints that permit to develop a noncommutative extension of the theory of <a href="page.php?w=Gr%C3%B6bner_bases">Gröbner bases</a>.</p>

<p><big> Properties </big></p>
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* An Ore extension of a <a href="page.php?w=domain_%28ring_theory%29">domain</a> is a domain.<br/>
* An Ore extension of a <a href="page.php?w=skew_field">skew field</a> is a non-commutative <a href="page.php?w=principal_ideal_domain">principal ideal domain</a>.<br/></p><p>
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