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math.RT2001
The homology of string algebras I
B. Huisgen-Zimmermann, S. O. Smalo
We show that string algebras are `homologically tame' in the following sense: First, the syzygies of arbitrary representations of a finite dimensional string algebra are direct…
math.RT2000
Geometry of chain complexes and outer automorphisms under derived equivalence
Birge Huisgen-Zimmermann, Manuel Saorin
The two main theorems proved here are as follows: If is a finite dimensional algebra over an algebraically closed field, the identity component of the algebraic group of outer…