Rings which are Essential over their Centers, II
Abstract
A ring R with center C is said to becentrally essential if the module RC is an essential extension of the module CC. We describe centrally essential exterior algebras of finitely generated free modules over not necessary commutative rings and study properties of semi-Artinian centrally essential rings. V.T.Markov is supported by the Russian Foundation for Basic Research, project 17-01-00895-A.~ A.A. Tuganbaev is supported by Russian Scientific Foundation, project 16-11-10013.
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