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Events - February 2013

Thursday, February 28, 2013 — 3:30 PM EST

Wentang Kuo, Department of Pure Mathematics, University of Waterloo

"On Erd}os-Pomerance conjecture"

Let k be a global function eld whose eld of constants is the nite eld Fq. Let 1 be a xed place of degree one, and A is the ring of elements of k which have only 1 as a pole. Let be a sgn-normalized rank one Drinfeld A-module dened over O, the integral closure of A in the Hilbert class eld of A. We prove an analogue of a conjecture of Erd}os and Pomerance for '.

Thursday, February 28, 2013 — 3:30 PM EST

Robert Garbary, Department of Pure Mathematics, University of Waterloo

"Parametrizing Points on Algebraic Curves"

Wednesday, February 27, 2013 — 4:30 PM EST

Tyrone Ghaswala, Department of Pure Mathematics, University of Waterloo

“There’s Morse Where That Came From”

We will continue covering the background required to get stuck in to Milnor’s Morse Theory. We will finish talking about CW-complexes and then cover smooth manifolds, tangent spaces and smooth functions between manifolds. With a bit of luck we will get through some of the basic definitions of Morse Theory. Come along if you dare!

Wednesday, February 27, 2013 — 2:30 PM EST

Jason Bell, Department of Pure Mathematics University of Waterloo

"Gromov’s Theorem: Part I”

Gromov’s theorem states that a finitely generated group of polynomially bounded growth has a nilpotent subgroup of finite index. I hope to give a complete proof of Gromov’s theorem over a few lectures. The first lecture is intended to be accessible to a beginning graduate student and will give the basic background needed along with an overview of the main steps of the proof.

Tuesday, February 26, 2013 — 3:00 PM EST

Pantelis Eleftheriou, Department of Pure Mathematics, University of Waterloo

"NIP VI"

We present products and Morley sequences of invariant types, and give an application to denable groups.

 

Wednesday, February 20, 2013 — 3:30 PM EST

Alexander Odesski, Brock University

“Integrable Lagrangians and modular forms”

We investigate non-degenerate Lagrangians of the form

f(ux,uy,ut)dxdydt

Wednesday, February 20, 2013 — 2:30 PM EST

Alexander Kolpakov, Vanderbilt University

“Growth rates of Coxeter groups, tessellations of hyperbolic space and algebraic integers”

Friday, February 15, 2013 — 3:30 PM EST

Tristan Bice, York University

“The Projection Calculus”

We derive a projection analog of the usual continuous functional calculus and show how it can be used to simplify and strengthen a number of classical results about projections in C*-algebras, particularly those of real rank zero.

Thursday, February 14, 2013 — 3:00 PM EST

Ian Payne, Department of Pure Mathematics University of Waterloo

“Maltsev digraphs have a majority polymorphism”

Alexandr Kazda showed in 2010 that Maltsev digraphs have a majority polymorphism. Coincidently, the paper in which the proof appeared has the same title as this talk. I will present the proof.

Wednesday, February 13, 2013 — 4:30 PM EST

Tyrone Ghaswala, Department of Pure Mathematics, University of Waterloo

"Morse than Meets the Eye"

This is the first session of a new learning seminar in geometry and topology. The plan is to work through Milnor's Morse Theory. This first talk will be covering some background in topology to set us up to start attacking the book. Join us!

Wednesday, February 13, 2013 — 3:30 PM EST

Owen Baker, McMaster University

“Hyperbolic Group Boundaries and Cannon-Thurston Maps”

Tuesday, February 12, 2013 — 3:00 PM EST

Pantelis Eleftheriou, Department of Pure Mathematics, University of Waterloo

“NIP Theories V”

We discuss invariant, definable, and finitely satisfiable types in theories with NIP.

Monday, February 11, 2013 — 4:00 PM EST

Xiaomei Zhao, Central China University and University of Waterloo

“Vinogradov-type estimates”

In this talk, we will begin with the classical Waring problem to outline the circle method, which includes a simple application of Vinogradov’s mean value theorem for minor arc esimates. We will also introduce more general Vinogradov-type estimates and their analogues in function fields.

Friday, February 8, 2013 — 3:30 PM EST

Elcim Elgun, Department of Pure Mathematics, University of Waterloo

“The Eberlein Compactification of the Heisenberg Type Group Z×T×T”

Thursday, February 7, 2013 — 3:30 PM EST

Matt Valeriote, McMaster University

"Characterizing congruence n-permutability"

Re-scheduled seminar from January 31, 2013.

Wednesday, February 6, 2013 — 3:30 PM EST

Xiaowei Wang, Rutgers University Newark

“Greatest Ricci curvature lower bounds and conic K ̈ahler-Einstein metrics”

Tuesday, February 5, 2013 — 4:30 PM EST

Speakers:
Ian Payne - Pure Mathematics
Georg Osang - Combinatorics & Optimization

Tuesday, February 5, 2013 — 3:00 PM EST

Omar Leon Sanchez, Department of Pure Mathematics, University of Waterloo

"NIP Theories IV"

We will see some examples of NIP theories and prove the Baldwin-Saxl theorem. Time permitting we will talk about invariant types.
Monday, February 4, 2013 — 4:00 PM EST

Spyros Alexakis, University of Toronto

“The black hole uniqueness problem, old and new.”

Friday, February 1, 2013 — 3:30 PM EST

Alexey Popov, Department of Pure Mathematics, University of Waterloo

“On the spatial structure of semigroups of partial isometries.”

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