26 citations · 26 across the 3 of their papers we have counts for
3 papers
math.RA2005
Invariance of generalised Reynolds ideals under derived equivalences
Alexander Zimmermann
For any algebraically closed field of positive characteristic and any non negative integer Külshammer defined ideals of the centre of a symmetric -alge…
math.RT2004★ 26 cited
Degenerations for derived categories
Bernt Tore Jensen, Xiuping Su, Alexander Zimmermann
We propose a theory of degenerations for derived module categories, analogous to degenerations in module varieties for module categories. In particular we define two types of degen…
math.RT2002
Stable endomorphism algebras of modules over special biserial algebras
Jan Schröer, Alexander Zimmermann
We prove that the stable endomorphism algebra of a module without self-extensions over a special biserial algebra is a gentle algebra. In particular, it is again special biserial.…