On the Local Structure of Morita and Rickard Equivalences between Brauer Blocks

• 1 Introduction.- 2 General notation, terminology and quoted results.- 3 Noninjective induction of OG-interior algebras.- 4 Hecke OG-interior algebras and noninjective induction.- 5 On the local structure of Hecke OG-interior algebras.- 6 Morita stable equivalences between Brauer blocks.- 7 Basic Morita stable equivalences between Brauer blocks.- 8 The Morita stable equivalent class of a nilpotent block.- 9 The differential Z-grading O-algebra.- 10 DG-modules.- 11 D-algebras and DG-interior algebras.- 12 Induction of DG-interior algebras.- 13 Brauer sections in basic induced DG-interior algebras.- 14 Pointed groups on DG>-interior algebras and Higman embeddings.- 15 Hecke DG-interior algebras and noninjective induction.- 16 On the local structure of Hecke DG-interior algebras.- 17 Brauer sections in basic Hecke DG-interior algebras.- 18 Rickard equivalences between Brauer blocks.- 19 Basic Rickard equivalences between Brauer blocks.- References.

"The author investigates the behavior of the local structure of a block under Morita equivalences, stable equivalences of Morita type (called Morita stable equivalences here) and Rickard equivalences. The local structure of a block is expressed mainly in terms of its local category (consisting of local pointed groups and their exomorphisms), its Brauer category (consisting of Brauer pairs and their exomorphisms) and its source algebra."–Zentralblatt Math