Derived equivalence of symmetric special biserial algebras

Details Derived equivalence of symmetric special biserial algebras Derived equivalence of symmetric special biserial algebras

2007-01-21

arxiv.org/abs/math/0701586v1

Mathematics

Representation Theory

19 pages, 13 figures

Scientific paper

We introduce Brauer complex of symmetric SB-algebra, and reformulate in terms of Brauer complex the so far known invariants of stable and derived equivalence of symmetric SB-algebras. In particular, the genus of Brauer complex turns out to be invariant under derived equivalence. We study transformations of Brauer complexes which preserve class of derived equivalence. Additionally, we establish a new invariant of derived equivalence of symmetric SB-algebras. As a consequence, symmetric SB-algebras with Brauer complex of genus 0 are classified. Keywords: Brauer tree algebras, special biserial algebras, tilting complex.

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