Corners and Arithmetic Groups

Program:

1) Introduction:   C. Bravo.   See here the beamer.

2) The group *G and Cartan involutions:   B. Loisel.   See here the beamer.

3) Homogeneous spaces of type S:   M. Jeannin.   See here the beamer.

4) Geodesic actions:   C. Bravo.   See here the beamer.

5) Parabolic subgroups:    B. Loisel.   See here the beamer.

6) The corner X(P) associated to a parabolic subgroup:    M. Jeannin.   See here the beamer.

7) The topology of X(P) and Siegel sets:    C. Bravo.   See here the beamer.

8) The manifold with corners X^:    C. Bravo.   See here the beamer.

9) Overview on the previous results:    M. Jeannin.   See here the pdf.

10) The homotopy type of the frontier of X^:    B. Loisel. See here the beamer. 

11) The quotient  X^/ G: 

12) Strong separation properties: 

13) Cohomology of arithmetic groups: