Descent in Buildings
- Referent: Prof. Richard M. Weiss
- Ort: SR 2.059 (20.30)
- Termin: 8.7.2015, 9:45 - 11:15 Uhr
- Gastgeber: JProf. Dr. Petra Schwer
Let be a building and let be a subgroup of its automorphism group. The set of residues stabilized by is partially ordered by inclusion. The minimal ones we call -chambers, the next larger ones we call -panels and we let be the graph whose vertices are the -chambers and whose edges are the pairs of -chambers contained in a single -panel.
In joint work with Bernhard Mühlherr, we determine exactly when the graph has the structure of a building. In this talk, I will describe this result and say something about applications.
Ab 09:15 Uhr findet in Raum 1.062 im Kollegiengebäude Mathematik (Geb. 20.30) ein gemeinsamer Tee statt. Herzliche Einladung!