Events by month

October 2018

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Number Theory Seminar

Tuesday, October 2, 2018 — 1:30 PM EDT

Pranabesh Das, Pure Mathematics, University of Waterloo

"Variants of Erd{\H o}s--Selfridge superelliptic curves and their rational points"

Algebra Seminar

Tuesday, October 2, 2018 — 2:30 PM EDT

Jairo Goncalves, University of Sao Paulo

"Some problems in division rings"

Let $D$ be a division ring with center $k$ and multiplicative group $D^{\bullet}= D \setminus \{0\}$. Moreover, let $N \vartriangleleft D^{\bullet}$ be a noncentral normal subgroup. We address the various cases in which the following conjecture, due to Lichtman, holds:

Conjecture: $N$ contains a free (non cyclic) subgroup.

Learning Seminar on Free Analysis

Wednesday, October 3, 2018 — 2:00 PM EDT

Eli Shamovich, Pure Mathematics, University of Waterloo

"Polynomials and rational functions"

Universal Algebra Learning Seminar

Wednesday, October 3, 2018 — 3:30 PM EDT

Ross Willard, Pure Mathematics, University of Waterloo

"Natural dualities for finitely generated quasi-varieties - definitions and first results"

Model Theory Seminar

Thursday, October 4, 2018 — 3:30 PM EDT

Rahim Moosa, Pure Mathematics, University of Waterloo

"Pseudo-finite sets and dimension, Part 2"

Having discussed the normalised counting measure on pseudo-finite sets and its application to Szemeredi Regularity, we now introduce the fine and coarse pseudo-finite dimensions for these sets, with an eye toward the Szemerdi-Trotter theorem.

Geometry and Topology Seminar

Friday, October 5, 2018 — 1:30 PM EDT

Fei Hu, University of British Columbia

"Jordan property for algebraic groups in arbitrary characteristic"

Universal Algebra Learning Seminar

Wednesday, October 10, 2018 — 3:30 PM EDT

Justin Laverdure, Department of Pure Mathematics, University of Waterloo

"The Pre-Duality Theorem"

We'll see the Pre-Duality Theorem, which says that a necessary condition for a topological structure M' to yield a duality on an algebraic structure M is for the data of M' to satisfy the commutativity/invariance properties seen last week. We'll chug along through the proof as far as we can go.

MC 5403

Analysis Seminar

Friday, October 12, 2018 — 3:00 PM EDT

**Note room change**

(Postponed from October 5, 2018)

Nico Spronk, Pure Mathematics, University of Waterloo

"On operator amenability of Fourier-Steiltjes algebras"

Geometry & Topology Seminar

Friday, October 12, 2018 — 3:00 PM EDT

**Note time change**​

Henri Roesch, Columbia University

"Horizon Stability and the Null Penrose Inequality"

Pure Math Colloquium

Monday, October 15, 2018 — 4:00 PM EDT

Navaratnam Sri Namachchivaya, Department of Applied Mathematics, University of Waterloo

"Multi-scale Dynamics and Information"

Number Theory Seminar

Tuesday, October 16, 2018 — 1:30 PM EDT

Neha Prabhu, Queen's University

"The error term in the Sato-Tate theorem of Birch"

Algebra Seminar

Tuesday, October 16, 2018 — 2:30 PM EDT

Ozgur Esentepe, University of Toronto

"Noncommutative Resolutions and Annihilation of Cohomology"

PhD Student Research Seminar

Wednesday, October 17, 2018 — 12:30 to 12:30 PM EDT

Anton Mosunov, Department of Pure Mathematics, University of Waterloo

"Representation of Prime Powers by Binary Forms"

The PhD Student Research Seminar is an opportunity to share your research progress with your fellow students. Hopefully we will each be more aware of the various research areas in our department, and maybe even find connections that we did not notice before. Works-in-progress and technical presentations are welcome and encouraged. Let's share and get to know our peers! Also there will be cookies.

Universal Algebra Learning Seminar

Wednesday, October 17, 2018 — 3:30 PM EDT

Justin Laverdure, Department of Pure Mathematics, University of Waterloo

"The Pre-Duality Theorem"

We'll see the Pre-Duality Theorem, which says that a necessary condition for a topological structure M' to yield a duality on an algebraic structure M is for the data of M' to satisfy the commutativity/invariance properties seen last week. We'll chug along through the proof as far as we can go.

MC 5403

Model Theory Seminar

Thursday, October 18, 2018 — 4:00 PM EDT

Rémi Jaoui, Department of Pure Mathematics, University of Waterloo

"Pseudo-finite sets and dimension, Part 3"

In the third part of this reading group, I will discuss the analogy between Szemeredi-Trotter theorem and certain instances of modularity for stable theories. Building on this analogy, I will  explain how to derive Elekes-Szabo theorem from Szemeredi-Trotter inequalities, using the group configuration theorem.

MC 5403

Geometry & Topology Seminar

Friday, October 19, 2018 — 1:30 PM EDT

Joey van der Leer Duran, University of Toronto

"Hodge decompositions for Lie algebroids on manifolds with boundary"

Analysis Seminar

Friday, October 19, 2018 — 3:00 PM EDT

Ben Passer, Department of Pure Mathematics, University of Waterloo

"Containment of Matrix Convex Sets"

Pure Math Colloquium

Monday, October 22, 2018 — 4:00 PM EDT

Thomas Lam, University of Michigan

"The mirror theorem for minuscule flag varieties"

Learning Seminar on Free Analysis

Wednesday, October 24, 2018 — 2:00 PM EDT

Eli Shamovich, Department of Pure Mathematics, University of Waterloo

"Noncommutative kernels, multipliers, and the Fock space"

Homotopy Type Theory Seminar

Thursday, October 25, 2018 — 3:00 PM EDT

Andrej Vukovic, Department of Pure Mathematics, University of Waterloo

"Univalence"

In this week's meeting of the homotopy type theory seminar, we begin by reviewing homotopy equivalence and the transport map. We then discuss dependent pair and function types in the context of homotopy theory and introduce function extensionality. Finally, we formalize the univalence axiom with the type-theoretic notion of homotopy equivalence.

MC 5413

Random Matrices Learning Seminar

Thursday, October 25, 2018 — 3:00 PM EDT

Daniel Perales, Department of Pure Mathematics, University of Waterloo

"Random matrices, interlacing families of polynomials, and the expected characteristic polynomial"

Thursday, October 25, 2018 — 4:00 PM EDT

John Sawatzky, Department of Pure Mathematics, University of Waterloo

Geometry & Topology Seminar

Friday, October 26, 2018 — 1:30 PM EDT

Richard Derryberry, University of Toronto and Perimeter Institute for Theoretical Physics

"Langlands duality and self-duality for Hitchin systems"

Analysis Seminar

Friday, October 26, 2018 — 3:00 PM EDT

Jeremy Levick, Conestoga College

"Factorizable Quantum Channels and Linear Matrix Inequalities"

Pure Math Colloquium

Monday, October 29, 2018 — 4:00 PM EDT

"The Arnold conjecture and Hamiltonian homeomorphisms"

The Arnold conjecture on fixed points of Hamiltonian diffeomorphisms has been one of the main driving forces in the development of symplectic topology.  After presenting the conjecture, we will introduce the notion of Hamiltonian homeomorphisms and will discuss whether the conjecture holds in non-smooth settings.  The talk will be accessible to a broad audience.

MC 5501

Number Theory Seminar

Tuesday, October 30, 2018 — 1:30 PM EDT

Melissa Emory, University of Toronto

"On the global Gan-Gross-Prasad conjecture for general spin groups"

I will define the general spin groups, and discuss the Gan-Gross-Prasad conjecture including the global GGP conjecture for GSpin groups. I will show that the conjecture is verified in several low-rank cases.

MC 5417

Universal Algebra Learning Seminar

Wednesday, October 31, 2018 — 3:30 PM EDT

Justin Laverdure, Department of Pure Mathematics, University of Waterloo

"Brute Force"

For a finite algebraic structure M, we still haven't settled the issue of whether any topological structures yield a duality. We will continue to not answer this question, but we will find a necessary candidate for such: the titular brute force construction. We'll say a few things about this, and (if we have time) cover some material for the following week.

MC 5403

October 2018

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