University of Chicago Algebraic Geometry Seminar
The algebraic geometry seminar is held in Eckhart Hall room 203,
on Wednesdays at 4-5pm, unless otherwise specified.
Click
here to see the location of Eckhart Hall, and
here for driving directions to University of Chicago.
Click here to see older talks.
Winter 2010 Seminars
January 13
David McReynolds (University of Chicago): Every curve is a Teichmuller curve.
Abstract: Recently with Jordan Ellenberg, we proved that every algebraic curve X defined over the algebraic closure of the rationals is birational over the complex numbers to a Teichmuller curve. This talk will touch on some of the main features of the proof, which draw from algebraic geometry, group theory, topology, and representation theory.
January 20
Ozgur Ceyhan: Cosmic Galois Groups
Abstract:
P. Cartier envisioned the existence of "cosmic Galois group" as a universal group
of symmetries that organizes the structure of the divergences in pQFTs. Along the
same line, Kontsevich conjectured a Groethendieck-Teichmuller (GT) group action
on Euclidean pQFTs.
Connes & Marcolli constructed such a symmetry group as a motivic Galois group by
using a particular regularization scheme: Dimensional regularization. In this talk, I am
going to illustrate how to reconstructed Connes-Marcolli's cosmic Galois group in a
simpler way via Epstein-Glaser renormalizations. Then, I will discuss the relations with Kontsevich's conjecture.
January 27
Ritabrata Munshi (IAS, Princeton): Subconvexity problem for the
Rankin-Selberg L-functions
Abstract: see pdf
Here is a link to the complete seminar list
If you have a request for a future speaker or any questions, please
contact Luca Scala (lucascala@math.uchicago.edu).