Difference between revisions of "Applied/GPS"

From UW-Math Wiki
Jump to navigation Jump to search
VisualWikitext
(Created skeleton page)
 
Line 15: Line 15:
 
!align="left" | host(s)
 
!align="left" | host(s)
 
|-
 
|-
−
|Sep 9
+
|Sept 9
−
|[http://www.math.ethz.ch/~einsiedl Manfred Einsiedler] (ETH-Zurich)
+
|[http://www.math.ethz.ch/~einsiedl First Speaker] (ETH-Zurich)
−
|''Periodic orbits on homogeneous spaces''
+
|''A bunch of applied stuff''
 
|Fish
 
|Fish
 
|}
 
|}
Line 23: Line 23:
 
== Abstracts ==
 
== Abstracts ==
  
−
===Fri, Sept 9: Manfred Einsiedler (ETH-Zurich)===
+
===Fri, Sept 9: First Speaker (ETH-Zurich)===
−
''Periodic orbits on homogeneous spaces''
+
''A bunch of applied stuff''
  
−
We call an orbit xH of a subgroup H<G on a quotient space Gamma \ G
+
Here is an abstract.
−
periodic if it has finite H-invariant volume. These orbits have
 
−
intimate connections to a variety of number theoretic problems, e.g.
 
−
both integer quadratic forms and number fields give rise periodic
 
−
orbits and these periodic orbits then relate to local-global problems
 
−
for the quadratic forms or to special values of L-functions.  We will
 
−
discuss whether a sequence of periodic orbits equidistribute in Gamma
 
−
\ G assuming the orbits become more complicated (which can be measured
 
−
by a discriminant). If H is a diagonal subgroup (also called torus or
 
−
Cartan subgroup), this is not always the case but can be true with a
 
−
bit more averaging. As a theorem of Mozes and Shah show the case where
 
−
H is generated by unipotents is well understand and is closely related
 
−
to the work of M. Ratner. We then ask about the rate of approximation,
 
−
where the situation is much more complex. The talk is based on several
 
−
papers which are  joint work with E.Lindenstrauss, Ph. Michel, and A.
 
−
Venkatesh resp. with G. Margulis and A. Venkatesh.
 

Revision as of 06:54, 2 September 2011


GPS Applied Mathematics Seminar

The GPS is a weekly seminar by and for graduate students. If you're interested in presenting your work, contact the organizers, Qin Li and Sarah Tumasz.

All seminars are on XXX at X:XX pm in Van Vleck XXX, unless otherwise indicated.

Fall 2011

date speaker title host(s)
Sept 9 First Speaker (ETH-Zurich) A bunch of applied stuff Fish

Abstracts

Fri, Sept 9: First Speaker (ETH-Zurich)

A bunch of applied stuff

Here is an abstract.

Retrieved from "https://wiki.math.wisc.edu/index.php?title=Applied/GPS&oldid=2472"