Revision as of 07:54, 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.

@@ Line 15: / Line 15: @@
 !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
 |}
@@ Line 23: / Line 23: @@
 == 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.

Difference between revisions of "Applied/GPS"

Revision as of 07:54, 2 September 2011

GPS Applied Mathematics Seminar

Fall 2011

Abstracts

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

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