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Please note: The University of Waterloo is closed for all events until further notice.

Events by month

November 2019

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Computability Learning Seminar

Tuesday, November 5, 2019 — 2:00 PM EST

Luke MacLean, Department of Pure Mathematics, University of Waterloo

"Reverse Mathematics"

We say that $S \subseteq \mathcal{P}(\omega)$ is an $\omega$-model of a subsystem of second order arithmetic if the $L_2$ structure $(\omega, S, +, \cdot, 0, 1, <)$ correctly models the subsystem in question. The goal of this lecture will be to prove that there is an $\omega$-model of $WKL_0$ consisting entirely of low sets.

This will involve learning about PA degrees and the low basis theorem.

All are welcome.

MC 5413

Valuative Tree Seminar

Tuesday, November 5, 2019 — 2:30 PM EST

Andrej Vukovic, Department of Pure Mathematics, University of Waterloo

We continue where last week's discussion left off by discussing the classification of semivaluations in the valuative tree. Then we return to our study of plane polynomial dynamics.

M3 3103

Analysis Seminar

Wednesday, November 6, 2019 — 3:30 PM EST

Alexandru Nica, Department of Pure Mathematics, University of Waterloo

"Free probabilistic aspects of meandric systems"

Model Theory Learning Seminar

Thursday, November 7, 2019 — 11:00 to 11:00 AM EST

Wilson Poulter, Department of Pure Mathematics, University of Waterloo

"NIP VI"

We finish section 2.2.2 of Simon's Guide to NIP theories and move on to 2.2.3.

MC 5413

Number Theory Seminar

Tuesday, November 12, 2019 — 1:30 PM EST

Arpita Kar, Queen's University

"Some reflections on the Riemann Hypothesis"

Computability Learning Seminar

Tuesday, November 12, 2019 — 2:00 PM EST

Dino Rossegger, Department of Pure Mathematics, University of Waterloo

"Determinacy in second order arithmetic"

Special Colloquium

Tuesday, November 12, 2019 — 3:00 PM EST

Daniel Le, University of Toronto

"Congruences between modular forms"

Analysis Seminar

Wednesday, November 13, 2019 — 3:30 PM EST

Boyu Li, University of Victoria

"Amenable and Non-amenable Semigroups"

Since Nica introduced the notion of amenability of quasi-lattice ordered semigroups, the amenability for many classes of semigroups remain unanswered. We will give a brief overview of semigroup amenability, and show some recent developments on this topic using dilation theory. In particular, we shall show that Artin monoids are non-amenable except the class of right-angled. This is a joint work with Marcelo Laca.

MC 5417

Thursday, November 14, 2019 — 12:00 to 12:00 PM EST

Dan Ursu, Pure Math Department, University of Waterloo

"Relative C*-Simplicity"

Colloquium

Monday, November 18, 2019 — 4:00 PM EST

Henry Yuen, University of Toronto

"Connes’ Embedding Problem through the lens of complexity theory"

Valuative Tree Seminar

Tuesday, November 19, 2019 — 2:00 PM EST

Brett Nasserden, Department of Pure Mathematics, University of Waterloo

"Preparing for polynomial dynamics of the affine plane"

We will begin applying our knowledge of the valuative tree to the case of polynomial dynamics of the affine plane. Our goal is to begin understanding when a dominant polynomial morphism of the affine plane has a zariski dense orbit.

MC 5501

Special Colloquium

Tuesday, November 19, 2019 — 3:00 PM EST

Andrew Zimmer, Louisiana State University

"Intrinsic and extrinsic geometries in several complex variables"

Analysis Seminar

Wednesday, November 20, 2019 — 3:30 PM EST

Sam Kim, Department of Pure Mathematics, University of Waterloo

"Some logical aspects of hyperrigidity of operator systems"

Model Theory Learning Seminar

Thursday, November 21, 2019 — 11:00 to 11:00 AM EST

Christopher Hawthorne, Department of Pure Mathematics, University of Waterloo

"NIP VII"

We begin chapter 3 of Simon's Guide to NIP theories.

MC 5413

Special Colloquium

Thursday, November 21, 2019 — 3:00 PM EST

Polona Durcik, Caltech

"On singular Brascamp-Lieb inequalities"

Thursday, November 21, 2019 — 4:30 PM EST

John Schanck, Department of Combinatorics & Optimization, University of Waterloo

"Kummer's Theorem on binomial coefficients, etc."

Special Colloquium

Friday, November 22, 2019 — 4:00 PM EST

Kiumars Kaveh, University of Pittsburg,

Colloquium

Monday, November 25, 2019 — 4:00 PM EST

James Freitag, University of Illinois at Chicago

"Model theory, automorphic functions, and differential equations"

Number Theory Seminar

Tuesday, November 26, 2019 — 1:30 PM EST

Kübra Benli, University of Georgia

"On the number of small prime power residues"

Computability Learning Seminar

Tuesday, November 26, 2019 — 2:00 PM EST

Luke MacLean, Department of Pure Mathematics, University of Waterloo

"Ramsey's Theorem"

We will discuss two different proofs of Ramsey's Theorem and compare their reverse mathematical strength.

MC 5413

Special Colloquium

Tuesday, November 26, 2019 — 3:00 PM EST

Kateryna Tatarko, University of Alberta

"Geometric methods in isoperimetric problems and random matrix theory"

Tuesday, November 26, 2019 — 3:30 PM EST

Eric Boulter, Department of Pure Mathematics, University of Waterloo

"Plane Old Tilings"

Analysis Seminar

Wednesday, November 27, 2019 — 3:30 PM EST

Dan Ursu, Department of Pure Mathematics, University of Waterloo

"Relative C* - simplicity"

Model Theory Learning Seminar

Thursday, November 28, 2019 — 11:00 to 11:00 AM EST

Steven Lazzaro, McMaster University

"NIP VIII"

We continue section 3.1.2 of Simon's Guide to NIP Theories.

MC 5413

Geometry and Topology Seminar

Thursday, November 28, 2019 — 1:30 PM EST

Artour Tomberg, Western University

"Irreducible vector bundles on hyperkähler twistor spaces"

Geometry & Topology Seminar

Friday, November 29, 2019 — 1:30 PM EST

Will Rushworth, McMaster University

"Ascent concordance"

November 2019

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