On commutativity of endomorphism rings of ideals
On commutativity of endomorphism rings of ideals
Let <italic>R</italic> be a commutative noetherian ring with <inline-formula content-type="math/mathml"> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="upper H o m Subscript upper R Baseline left-parenthesis upper I comma upper I right-parenthesis"> <mml:semantics> <mml:mrow> <mml:mrow class="MJX-TeXAtom-ORD"> <mml:msub> <mml:mi>Hom</mml:mi> <mml:mi>R</mml:mi> </mml:msub> </mml:mrow> <mml:mo stretchy="false">(</mml:mo> <mml:mi>I</mml:mi> <mml:mo>,</mml:mo> <mml:mi>I</mml:mi> <mml:mo stretchy="false">)</mml:mo> </mml:mrow> <mml:annotation encoding="application/x-tex">{\operatorname {Hom}_R}(I,I)</mml:annotation> </mml:semantics> </mml:math> </inline-formula> …