Dirk Kussin, Universität Münster
What is a tube?
We discuss the categorical structure of a tube, let say a
homogeneous one over a tame hereditary algebra over a field, and
compare a bottom-up with a top-down approach for its determination.
We compare the functorial properties of the Auslander-Reiten
translation on a tube with tubular shift functors associated with
tubes. New results and examples will be presented.