# Buildings 2013: Schedule

## Monday October 7 (Lecture Hall M6)

9:00 - 10:00 **Registration** at the office of Ms Loew and Ms Thiele, Room 306.

(You may also register later on Monday.)

10:00 - 10:50 Hendrik Van Maldeghem (Gent)

Exceptional spherical buildings.

**Coffee break**

11:20 - 12:00 Guy Rousseau (Nancy)

Spherical Hecke algebras for affine hovels.

12:10 - 12:50 James Parkinson (Sydney)

Domestic automorphisms of generalised polygons.

**Lunch break and Registration**

14:30 - 15:10 Jeroen Schillewaert (London)

Imbrex geometries.

**Coffee break**

15:40 - 16:20 Bart De Bruyn (Gent)

The uniqueness of the generalized octagon of order (2,4) containing a suboctagon of order (2,1).

16:30 - 17:10 Rieuwert Blok (Bowling Green)

Curtis-Tits groups of type Ã_{n-1}.

## Tuesday October 8 (Lecture Hall M6)

9:30 - 10:20 Ralf Köhl (Giessen)

Spin representations for "maximal compact" subgroups of simply laced real Kac-Moody groups.

10:30 - 11:00 Max Horn (Giessen)

Decompositions of Kac-Moody groups.

**Coffee break**

11:30 - 12:10 Barbara Baumeister (Bielefeld)

Trivalent Moufang twin trees.

**Lunch break**

14:30 - 15:10 Rupert McCallum (Münster)

The fundamental theorem of projective geometry for classical measurable buildings.

**Coffee break**

15:40 - 16:10 Anneleen De Schepper (Gent)

Variations on the fundamental theorem of projective geometry.

16:20 - 17:00 Koen Struyve (Gent)

Twinnings at finite distance.

17:20 - 18:00 Timothée Marquis (Louvain-la-Neuve)

Conjugacy classes and straight elements in Coxeter groups.

## Wednesday October 9 (Lecture Hall M6)

9:30 - 10:20 Anne Thomas (Glasgow)

Cocompact lattices in locally compact Kac-Moody groups.

10:30 - 11:10 Petra Schwer (Münster)

Simplicial non-positive curvature and triangle groups.

**Coffee break**

11:40 - 12:20 Linus Kramer (Münster)

Transitive actions of locally compact groups on locally contractible spaces.

**Short lunch break**

14:00 - 14:40 Christian Lange (Köln)

Pseudoreflection groups and the binary icosahedral group.

**Coffee break**

15:10 - 15:50 Rainer Löwen (Braunschweig)

The space of circles of a spherical circle plane.

16:00 - 16:40 Markus Stroppel (Stuttgart)

Translations, bilinear maps, and algebras:
Actions of nilpotent groups on unitals.

**End of conference**