Skip to main content

Abstracts for Seminar "Arithmetic of Algebraic Groups"

Alternatively have a look at the program.

Cohomology of arithmetic groups - the general scenario

Posted in
Speaker: 
Günter Harder
Zugehörigkeit: 
MPIM
Datum: 
Die, 15/10/2019 - 10:15 - 11:45
Location: 
MPIM Lecture Hall

Cohomology of arithmetic groups - A specific -highly non trivial- example

Posted in
Speaker: 
Günter Harder
Zugehörigkeit: 
MPIM
Datum: 
Die, 22/10/2019 - 16:30 - 18:00
Location: 
MPIM Lecture Hall

Cohomology of arithmetic groups - a specific example [continued]

Posted in
Speaker: 
Günter Harder
Zugehörigkeit: 
MPIM
Datum: 
Die, 29/10/2019 - 10:15 - 11:45
Location: 
MPIM Lecture Hall

Denominators of Eisenstein cohomology classes

Posted in
Speaker: 
Christian Kaiser
Zugehörigkeit: 
MPIM
Datum: 
Die, 05/11/2019 - 10:15 - 12:00
Location: 
MPIM Lecture Hall

Denominators of Eisenstein cohomology classes - continued -

Posted in
Speaker: 
Christian Kaiser
Zugehörigkeit: 
MPIM
Datum: 
Die, 12/11/2019 - 10:15 - 12:00
Location: 
MPIM Lecture Hall

Cohomology of arithmetic groups and Eisenstein series (I) - some geometric aspects at infinity

Posted in
Speaker: 
Joachim Schwermer
Zugehörigkeit: 
MPIM
Datum: 
Die, 19/11/2019 - 10:15 - 12:00
Location: 
MPIM Lecture Hall

Cohomology of arithmetic groups and Eisenstein series (II) - construction of non-vanishing cohomology classes

Posted in
Speaker: 
Joachim Schwermer
Zugehörigkeit: 
MPIM
Datum: 
Die, 26/11/2019 - 10:15 - 12:00
Location: 
MPIM Lecture Hall

Cohomology of arithmetic groups - the general scenario Part III

Posted in
Speaker: 
Günter Harder
Zugehörigkeit: 
MPIM
Datum: 
Die, 03/12/2019 - 10:15 - 12:00
Location: 
MPIM Lecture Hall

Geometric construction of homology classes in Riemannian manifolds covered by products of hyperbolic planes

Posted in
Speaker: 
Pascal Zschumme
Zugehörigkeit: 
KIT, Karlsruhe
Datum: 
Die, 10/12/2019 - 10:15 - 12:00
Location: 
MPIM Lecture Hall

We study the homology of Riemannian manifolds of finite volume that are covered by a product of r copies  of the hyperbolic plane. Using a variation of a method developed by Avramidi and Nyguen-Phan, we show that any such manifold  M possesses, up to finite coverings, an arbitrarily large number of compact oriented flat totally geodesic r-dimensional submanifolds whose fundamental classes are linearly independent in the r-th homology group of M.

Construction of some arithmetically defined compact locally symmetric spaces

Posted in
Speaker: 
Tyakal Venkataramana
Zugehörigkeit: 
Tata Institute/MPIM
Datum: 
Fre, 13/12/2019 - 10:15 - 12:00
Location: 
MPIM Lecture Hall
© MPI f. Mathematik, Bonn Impressum & Datenschutz
-A A +A