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Injective Hulls of Simple Modules over Differential Operator Rings
Authors:Paula A A B Carvalho  Can Hatipoğlu
Institution:CMUP, Department of Mathematics , Faculty of Science of the University of Porto , Porto , Portugal
Abstract:We study injective hulls of simple modules over differential operator rings Rθ; d], providing necessary conditions under which these modules are locally Artinian. As a consequence, we characterize Ore extensions of S = Kx]θ; σ, d] for σ a K-linear automorphism and d a K-linear σ-derivation of Kx] such that injective hulls of simple S-modules are locally Artinian.
Keywords:Differential operator rings  Injective modules  Noetherian rings  Simple modules
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