## Contact Info

Pure MathematicsUniversity of Waterloo

200 University Avenue West

Waterloo, Ontario, Canada

N2L 3G1

Departmental office: MC 5304

Phone: 519 888 4567 x43484

Fax: 519 725 0160

Email: puremath@uwaterloo.ca

Monday, October 31, 2016 — 4:00 PM EDT

**William Slofstra, Institute for Quantum Computing, University of Waterloo**

"Tsirelson's problem and linear system games"

Friday, October 28, 2016 — 3:30 PM EDT

**Paul Skoufranis, York University **

“Majorization in C*-Algebras”

Friday, October 28, 2016 — 11:30 AM EDT

**Hongdi Huang, Department of Pure Mathematics, University of Waterloo **

“Maschke’s Theorem in Hopf algebra.”

Friday, October 28, 2016 — 10:00 AM EDT

**Kamyar Moshksar **

“On Asynchronous Interference Channels”

Friday, October 28, 2016 — 9:00 AM EDT

**Panagiotis Gianniotis, Department of Pure Mathematics, University of Waterloo **

“The Ricci flow on 3-manifolds with positive Ricci curvature”

Thursday, October 27, 2016 — 4:30 PM EDT

**Shubham Dwivedi, Department of Pure Mathematics, University of Waterloo **

“The Octonions”

Thursday, October 27, 2016 — 1:30 PM EDT

**Divyum Sharma, Department of Pure Mathematics, University of Waterloo **

“Number of solutions of Thue Equations”

Thursday, October 27, 2016 — 1:30 PM EDT

**Christopher Hawthorne, Department of Pure Mathematics, University of Waterloo **

will speak on

We continue chapter 4 of Goldblatt; we study bundles and sheaves, and we see that both are examples of topoi.

MC 5403

Thursday, October 27, 2016 — 12:30 PM EDT

**Diana Castaneda Santos, Department of Pure Mathematics, University of Waterloo **

“Sheafification, subsheaves and quotient sheaves”

Wednesday, October 26, 2016 — 3:00 PM EDT

**Martin Pinsonnault, University of Western Ontario**

TBA

MC 5403

**Please note special day, time and room**

Wednesday, October 26, 2016 — 1:00 PM EDT

**Steven Lazzaro, McMaster University **

“Metric Structures”

Tuesday, October 25, 2016 — 3:30 PM EDT

**Jonathan Stephenson, Department of Pure Mathematics, University of Waterloo **

“Joins of r.i.c.e relations and r.i.c.e complete relations”

Monday, October 24, 2016 — 4:00 PM EDT

**Noah Giansiracusa, Department of Mathematics and Statistics, Swarthmore College **

“A matroidal view of algebraic geometry”

Friday, October 21, 2016 — 11:30 PM EDT

**Ehsaan Hossain, Department of Pure Mathematics, University of Waterloo **

“Connell’s Theorem, Part II”

Friday, October 21, 2016 — 2:30 PM EDT

**Jon Yard, C&O/IQC/Perimeter, University of Waterloo **

“Complex equiangular lines and class field theory”

Thursday, October 20, 2016 — 3:00 PM EDT

**Matthew Wiersma, University of Alberta **

“Extensions of Fourier spaces”

Thursday, October 20, 2016 — 2:30 PM EDT

**Jonathan Stephenson, Department of Pure Mathematics, University of Waterloo**

“Computable structures and computable dimension”

This seminar will discuss some of the ideas of computable structure theory, which aims to apply computability-theoretic ideas to structures from other areas of mathematics.

Thursday, October 20, 2016 — 1:30 PM EDT

****CANCELLED****

**Tristan Freiberg, Department of Pure Mathematics, University of Waterloo **

“Poisson distribution for gaps between sums of two squares and level spacings for toral point scatterers”

Thursday, October 20, 2016 — 1:30 PM EDT

**Christopher Hawthorne, Department of Pure Mathematics, University of Waterloo **

will speak on

Abstract

We continue chapter 4 of Goldblatt; we present examples of topoi, and we introduce sheaves and bundles.

MC 5403

Thursday, October 20, 2016 — 12:30 PM EDT

**Nickolas Rollick, Department of Pure Mathematics, University of Waterloo **

“Cant see the forest for the sheaves”

Wednesday, October 19, 2016 — 2:30 PM EDT

**Daniel Smertnig, University of Graz **

“Non-unique factorizations in maximal orders and beyond”

Tuesday, October 18, 2016 — 3:30 PM EDT

**Jonathan Stephenson, Department of Pure Mathematics, University of Waterloo**

“Coding sets of natural numbers into structures”

We will describe a way to interpret certain r.i.c.e relations as coding sets of natural numbers into structures. Using enumeration reductions, we will give a characterization of the sets of natural numbers which are coded in a structure in terms of the types of the tuples in that structure.

Friday, October 14, 2016 — 4:00 PM EDT

**Lyudmila Turowska, Chalmers University of technology & Gothenburg University**

"Compact operator synthesis and essential spectral synthesis in harmonic

analysis"

Friday, October 14, 2016 — 2:30 PM EDT

**Panagiotis Gianniotis, Department of Pure Mathematics, University of Waterloo **

“Ricci flow from spaces with isolated conical singularities”

Friday, October 14, 2016 — 9:00 AM EDT

**Shubham Dwivedi, Department of Pure Mathematics, University of Waterloo **

*"Mass of Asymptotically flat manifolds: Part Two"*

University of Waterloo

200 University Avenue West

Waterloo, Ontario, Canada

N2L 3G1

Departmental office: MC 5304

Phone: 519 888 4567 x43484

Fax: 519 725 0160

Email: puremath@uwaterloo.ca

University of Waterloo

University of Waterloo

43.471468

-80.544205

200 University Avenue West

Waterloo,
ON,
Canada
N2L 3G1

The University of Waterloo acknowledges that much of our work takes place on the traditional territory of the Neutral, Anishinaabeg and Haudenosaunee peoples. Our main campus is situated on the Haldimand Tract, the land granted to the Six Nations that includes six miles on each side of the Grand River. Our active work toward reconciliation takes place across our campuses through research, learning, teaching, and community building, and is centralized within our Office of Indigenous Relations.