Finite correspondence of spectra in Noetherian ring extensions
Finite correspondence of spectra in Noetherian ring extensions
Let <inline-formula content-type="math/mathml"> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="upper R left-bracket u n k right-bracket upper S"> <mml:semantics> <mml:mrow> <mml:mi>R</mml:mi> <mml:mo stretchy="false">[</mml:mo> <mml:mi>u</mml:mi> <mml:mi>n</mml:mi> <mml:mi>k</mml:mi> <mml:mo stretchy="false">]</mml:mo> <mml:mi>S</mml:mi> </mml:mrow> <mml:annotation encoding="application/x-tex">R[unk]S</mml:annotation> </mml:semantics> </mml:math> </inline-formula> be an embedding of associative noetherian rings such that <inline-formula content-type="math/mathml"> <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" alttext="upper S"> <mml:semantics> <mml:mi>S</mml:mi> <mml:annotation encoding="application/x-tex">S</mml:annotation> …