Oberseminar Geometrie, Gruppen- und Modelltheorie: Thomas Haettel: Visual limits of maximal flats in symmetric spaces and Euclidean buildings
Thursday, 22.11.2012 10:30 im Raum SR1C
We study the space of maximal flats of symmetric spaces of non-compact type or of Euclidean buildings: we define a geometric compactification by looking at the
visual limits of a diverging sequence of flats. We completely determine the possible degenerations of flats when X is of rank 1, associated to a classical group of rank 2 or to PGL(4). In particular, we exhibit unexpected behaviours of visual limits of maximal flats in various symmetric spaces of small rank and surprising algebraic restrictions that occur.
Angelegt am 20.11.2012 von N. N
Geändert am 20.11.2012 von N. N
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