Auslander–Reiten theory

In algebra, Auslander–Reiten theory studies the representation theory of Artinian rings using techniques such as Auslander–Reiten sequences (also called almost split sequences) and Auslander–Reiten quivers. Auslander–Reiten theory was introduced by Maurice Auslander and Idun Reiten (1975) and developed by them in several subsequent papers.

For survey articles on Auslander–Reiten theory see Auslander (1982), Gabriel (1980), Reiten (1982), and the book Auslander, Reiten & Smalø (1997). Many of the original papers on Auslander–Reiten theory are reprinted in Auslander (1999a, 1999b).