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arxiv: 1803.09233 · v2 · pith:JGGDX25Tnew · submitted 2018-03-25 · 🧮 math.AC

On modules with self Tor vanishing

classification 🧮 math.AC
keywords ringsconjecturetor-persistentvanishingalgebraauslanderauthorsavramov
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The long-standing Auslander and Reiten Conjecture states that a finitely generated module over a finite-dimensional algebra is projective if certain Ext-groups vanish. Several authors, including Avramov, Buchweitz, Iyengar, Jorgensen, Nasseh, Sather-Wagstaff, and \c{S}ega, have studied a possible counterpart of the conjecture, or question, for commutative rings in terms of vanishing of Tor. This has led to the notion of Tor-persistent rings. Our main result shows that the class of Tor-persistent local rings is closed under a number of standard procedures in ring theory.

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