Simples in a cotilting heart
arXiv:2205.11883
Abstract
Every cotilting module over a ring R induces a t-structure with a Grothendieck heart in the derived category D(Mod R). We determine the simple objects in this heart and their injective envelopes, combining torsion-theoretic aspects with methods from the model theory of modules and Auslander-Reiten theory.
The paper will appear in Mathematische Zeitschrift