Tuesday, November 19, 14:00, 7.527
Paul Wedrich (Bonn), Quivers for SL(2) tilting modules.
I will explain how diagrammatic algebra can be used to give an
explicit generators-and-relations presentation of all morphisms between
indecomposable tilting modules for SL(2) over an algebraically closed field
of positive characteristic. The result takes the form of a path algebra of
an infinite, fractal-like quiver with relations, which can be considered as
the (semi-infinite) Ringel dual of SL(2). Joint work with Daniel