# Events by month

## January 2016

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### Analysis Seminar

Tuesday, January 5, 2016 — 3:30 PM EST

Michael Brannan, Texas A M University

“Matricial microstates for quantum group von Neumann algebras”

### Computability Learning Seminar

Wednesday, January 6, 2016 — 3:30 PM EST

Jonathan Stephenson, Department of Pure Mathematics, University of Waterloo

“Stronger Notions of Randomness”

Last semester we studied Martin-Lof randomness, and the weaker notion of Schnorr ran- domness. We will now introduce 2-randomness and weak 2-randomness, which are stronger notions than Martin-Lof randomness.

### Geometric Analysis Working Seminar

Thursday, January 7, 2016 — 2:10 PM EST

Geometric Analysis Working Seminar

Organizational Meeting

### Analysis Seminar

Friday, January 8, 2016 — 3:30 PM EST

Robert Martin, University of Cape Town

“Multipliers between deBranges-Rovnyak subspaces of Drury-Arveson space”

### String Theory Seminar

Friday, January 8, 2016 — 4:30 PM EST

Henry Liu, Department of Pure Mathematics, University of Waterloo

“Stringy Actions and Gauge Fixing”

### Model Theory Learning Seminar

Tuesday, January 12, 2016 — 1:00 PM EST

Christopher Hawthorne, Pure Mathematics, University of Waterloo

We will work through chapter 7 of Tent and Ziegler. We will develop the notions of forking and dividing as measures of how strongly a set depends on a set of parameters. We will then introduce simple theories, an important generalization of stable theories.

### Model Theory of Berkovich Spaces

Tuesday, January 12, 2016 — 3:30 PM EST

Abstract

This term we will be reading through Ducros Bourbaki article, “Les espaces Berkovich sont moderes [dapres Ehud Hrushovski et Francois Loeser]. We start with the overview given in the introduction.

MC 5403

### Algebraic Geometry Working Seminar

Wednesday, January 13, 2016 — 1:00 PM EST

Raymond Cheng, Department of Pure Mathematics, University of Waterloo

"Topologies in Algebraic Geometry"

### Fractal Geometry Seminar

Wednesday, January 13, 2016 — 2:30 PM EST

Kevin Hare, University of Waterloo

“Self Affine Maps”

### Computability Learning Seminar

Wednesday, January 13, 2016 — 3:30 PM EST

Jonathan Stephenson, Department of Pure Mathematics, University of Waterloo

“2-randomness and complexity”

We will begin our proof that Z is 2-random if and only infinitely many of its initial segments are incompressible in the sense of plain complexity.

### Ring theory learning seminar

Thursday, January 14, 2016 — 11:30 to 11:30 AM EST

Ehsaan Hossain, Pure Mathematics, University of Waterloo

"Morita theory 1: Modules"

Let $\mathrm{Mod}_R$ be the category of right $R$-modules. Two rings $R,S$ are \textit{Morita equivalent}, denoted $R\sim S$, if $\mathrm{Mod}_R$ and $\mathrm{Mod}_S$ are equivalent as categories. For example $\mathbf{C}$ is Morita equivalent to $M_2(\mathbf{C})$, because any $\mathbf{C}$-vector space can double up to become an $M_2(\mathbf{C})$-module. Many properties are Morita invariant; for instance simplicity, semisimplicity, and chain conditions.

### Model Theory Learning Seminar

Thursday, January 14, 2016 — 1:00 PM EST

Christopher Hawthorne, Pure Mathematics, University of Waterloo

We will work through chapter 7 of Tent and Ziegler. We will develop the notions of forking and dividing as measures of how strongly a set depends on a set of parameters. We will then introduce simple theories, an important generalization of stable theories.

### Number Theory Seminar

Thursday, January 14, 2016 — 1:30 PM EST

Kevin Hare, Pure Math Department, University of Waterloo

“Beta representations and Pisot numbers”

### Universal Algebra Seminar

Thursday, January 14, 2016 — 2:30 PM EST

Ian Payne, Department of Pure Mathematics, University of Waterloo

"A result on constraint satisfaction problems"

### Model Theory Learning Seminar

Thursday, January 14, 2016 — 3:30 PM EST

Christopher Hawthorne, Pure Mathematics, University of Waterloo

We will work through chapter 7 of Tent and Ziegler. We will develop the notions of forking and dividing as measures of how strongly a set depends on a set of parameters. We will then introduce simple theories, an important generalization of stable theories.

### Analysis Seminar

Friday, January 15, 2016 — 3:30 PM EST

Jimmy He, Pure Math Department, University of Waterloo

“Smoothness of convolution products of orbital measures on rank one compact symmetric spaces”

### String Theory Seminar

Friday, January 15, 2016 — 4:30 PM EST

Henry Liu, Department of Pure Mathematics, University of Waterloo

“Quantizing the String”

### Model Theory Learning Seminar

Monday, January 18, 2016 — 1:30 PM EST

Ifaz Kabir, Department of Pure Mathematics, University of Waterloo

“Finite model theory seminar”

We will begin going through Flum and Ebbinghaus’ Finite Model Theory.

MC 5403

### Pure Math Colloquium

Monday, January 18, 2016 — 4:00 PM EST

Wlodek Bryc, University of Cincinnati

“Normal distribution: Some characterization problems in Statistics”

### Ring Theory Seminar

Tuesday, January 19, 2016 — 11:30 to 11:30 AM EST

Christopher Schafhauser, Department of Pure Mathematics, University of Waterloo

“Goldie’s Theorem on semiprime rings”

### Geometric Analysis Working Seminar

Tuesday, January 19, 2016 — 1:00 PM EST

Spiro Karigiannis, Department of Pure Mathematics, University of Waterloo

“Weyl curvature, conformal geometry, and uniformization: Part I”

### Model Theory Learning Seminar

Tuesday, January 19, 2016 — 1:00 PM EST

Christopher Hawthorne, Department of Pure Mathematics, University of Waterloo

“Model theory learning seminar”

We will prove some basic properties of dividing and forking.

MC 5023A

### Student Number Theory Seminar

Tuesday, January 19, 2016 — 2:30 PM EST

Stanley Xiao, Department of Pure Mathematics, University of Waterloo

“The basic large sieve inequality”

### Berkovich Spaces

Tuesday, January 19, 2016 — 3:30 PM EST

“Overview II ”

Abstract

We continue with the introduction to Ducros’ Bourbaki paper on Berkovich spaces (after Hrushovski and Loeser).

MC 5403

### Geometry Working Seminar

Wednesday, January 20, 2016 — 11:00 to 11:00 AM EST

Henry Lui, Department of Pure Mathematics, University of Waterloo

“Teichmu ̈ller Spaces”

### Algebraic Geometry Working Seminar

Wednesday, January 20, 2016 — 1:00 PM EST

Raymond Cheng, Department of Pure Mathematics, University of Waterloo

“Points in the Plane”

Nothing too fancy today: let us simply study schemes supported on finite subsets of the complex plane. Along the way, we will talk about Hilbert functions, Hilbert polynomials, families of schemes and maybe even something about moduli.

MC 5403

### Algebra Seminar

Wednesday, January 20, 2016 — 2:30 PM EST

“Linkage of p-algebras of prime degree”

### Computability Learning Seminar

Wednesday, January 20, 2016 — 3:30 PM EST

Jonathan Stephenson, Department of Pure Mathematics, University of Waterloo

“Lowness Properties”

AbstractGiven a class C of real numbers which can be relativized to a class C(X) depending on a real parameter X, we say that X is low for C if C(X)=C.

### Number Theory Seminar

Thursday, January 21, 2016 — 1:30 PM EST

Arunabha Biswas, Queen’s University

“Some aspects of higher Mahler Measure”

### Universal Algebra Seminar

Thursday, January 21, 2016 — 2:30 PM EST

Matthew Moore, Vanderbilt University

“Absorption and directed Jonsson terms”

### Analysis Seminar

Friday, January 22, 2016 — 3:30 PM EST

Vern Paulsen, Pure Math Department, University of Waterloo

“Quotients of Operator Systems, Nuclearity, and Lifting Problems”

### String Theory Seminar

Friday, January 22, 2016 — 3:40 PM EST

Anton Borissov, Department of Pure Mathematics, University of Waterloo

“Conformal Field Theory: A Worker’s Perspective”

### Ring Theory Seminar

Tuesday, January 26, 2016 — 10:30 to 10:30 AM EST

Tyrone Ghaswala, Department of Pure Mathematics, University of Waterloo

“Morita Theory III: The Progeny Returns”

I will continue our discussion about generators and progenerators, resisting the urge to make extremely intelligent and witty jokes about going pro or supporting electricity production.

MC 5403

### Student Number Theory Seminar

Tuesday, January 26, 2016 — 2:30 PM EST

Stanley Xiao, Department of Pure Mathematics, University of Waterloo

“More on the Beurling-Selberg function”

### Berkovich Spaces

Tuesday, January 26, 2016 — 3:30 PM EST

Rahim Moosa, Department of Pure Mathematics, University of Waterloo

“Algebraically closed valued fields”

I will give an introduction and overview of the model theoretic approach to valued fields.

MC 5403

### Algebraic Geometry Working Seminar

Wednesday, January 27, 2016 — 1:00 PM EST

Raymond Cheng, Department of Pure Mathematics, University of Waterloo

“Hilbert Objects, First Examples”

I will reveal the secrets of the Hilbert function, speak of the Hilbert polynomial and then talk more about the Hilbert scheme. As an example of a Hilbert scheme, we talk about the Grassmannian.

MC 5403

### Fractal Geometry Seminar

Wednesday, January 27, 2016 — 2:30 PM EST

Ed Vrscay, Department of Applied Math, University of Waterloo

“Generalized fractal transforms, contraction maps and associated inverse problems”

### Computability Learning Seminar

Wednesday, January 27, 2016 — 3:30 PM EST

Jonathan Stephenson, Department of Pure Mathematics, University of Waterloo

“Lowness Notions”

We will continue our study of the relationships between different lowness notions. Each such notion captures the idea of a real number having minimal computational power according to some criterion.

### Number Theory Seminar

Thursday, January 28, 2016 — 1:30 PM EST

Matilde Lalin, University of Montreal

“The distribution of points on cyclic l-covers of genus g”

### Universal Algebra Learning Seminar

Thursday, January 28, 2016 — 2:30 PM EST

Ian Payne, Department of Pure Mathematics,  University of Waterloo

“A result on constraint satisfaction problems: part 2”

### Joint Student Colloquium

Thursday, January 28, 2016 — 4:00 PM EST

John J.C. Saunders, Department of Pure Mathematics, University of Waterloo

"Sieve Methods in Random Graph Theory"

### Analysis Seminar

Friday, January 29, 2016 — 3:30 PM EST

Emily Redelmeier

“Combinatorics and Asymptotics of Matrix Cumulants, and Connections to Second-Order Freeness ”

### February 2023

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