2020
Jan
22

# Graduate Students Seminar

- 2020 Jan 22
# Grad student seminar - Barak Ohana - Bass-Serre theory

4:00pm to 5:00pm - 2019 Nov 27
- 2019 Mar 31
- 2019 Jan 16
- 2019 Jan 02
- 2018 Dec 19
- 2018 Dec 05
- 2018 Nov 21
# Graduate Student Seminar: Amichai Lampert - Fourier Uniform Sets

4:00pm to 5:00pm## Location:

Ross 63Abstract: Let G be a finite abelian group. We say that a given subset of G is uniform if all of its Fourier coefficients are small. We'll show that uniform sets are common and explore some of their nice additive properties. - 2018 Nov 07
# Graduate Student Seminar: Amitay Kamber - Arithmetic Groups and Borel-Harish Chandra Theorem

4:00pm to 5:00pm## Location:

Ross 63Abstract: In geometry and combinatorics we are interested in “finite objects”, which are either Riemannian manifolds with finite volume or finite complexes. One way to construct such objects is to take a nice covering space X, and divide it by a discrete subgroup \Gamma. For example, by dividing X=R by \Gamma=Z we get the circle S^1. A far more general case is when we divide a symmetric space X associated with a semisimple Lie group G by an "arithmetic subgroup" \Gamma, for example G=SLn(R), \Gamma=SLn(Z).