Events - 2023

Monday, April 3, 2023 — 2:30 PM EDT

Colloquium

Susan Koch, University of Michigan

"Dynamical data: from topology to algebra"

Thursday, March 30, 2023 — 4:00 PM EDT

Analysis Seminar

Paul Skoufranis, York University

"An Overview of Free and Bi-Free Probability"

In this talk, we will provide an overview of the definitions, structures, examples, results, and applications in free probability and its recent generalization known as bi-free probability.

This seminar will be held both online and in person:

Thursday, March 30, 2023 — 2:30 PM EDT

Geometry & Topology Seminar

Aleksandar Milivojevic, Max Planck Institute for Mathematics, Bonn

"Topological aspects of almost complex structures on the six sphere"

Thursday, March 30, 2023 — 10:00 AM EDT

Learning Seminar on Elliptic Curves

Nic Banks, Department of Pure Mathematics, University of Waterloo

"The inverse Galois problem"

MC 5403

Wednesday, March 29, 2023 — 2:00 PM EDT

Algebraic Geometry Working Seminar

Keke Zhang, Department of Pure Mathematics, University of Waterloo

We will talk about the Fourier-Mukai transform and how it relates to geometric Langlands correspondence, Geometric Langlands for reductive groups (geometric Satake equivalence) and their examples. If time allows, we will give a deformed version of the Fourier-Mukai transform.

This seminar will be held both online and in person:

Wednesday, March 29, 2023 — 1:00 PM EDT

Model Theory Working Seminar

Christine Eagles, Department of Pure Mathematics, University of Waterloo

"Domination in stable theories"

Tuesday, March 28, 2023 — 2:30 PM EDT

Differential Geometry Working Seminar

Lucia Martin Merchan, Department of Pure Mathematics, University of Waterloo

"Formality of Joyce's manifolds"

Tuesday, March 28, 2023 — 2:30 PM EDT

Logic Seminar

Salma Shaheen, Department of Pure Mathematics, University of Waterloo

"Algebras from Finite Group Actions"

Tuesday, March 28, 2023 — 1:30 PM EDT

William's Topology Fun Seminar

William Gollinger, University of Waterloo

"Four" proofs that \pi_1(G) is abelian

Tuesday, March 28, 2023 — 11:30 AM EDT

Number Theory Seminar

Cameron Stewart, Department of Pure Mathematics, University of Waterloo

"On prime factors of binary recurrence sequences"

We shall discuss estimates for the greatest prime factor of terms of binary recurrence sequences.

MC 5479

Monday, March 27, 2023 — 2:30 PM EDT

Colloquium

Guoliang Yu, Texas A&M University

"Index theory of the Dirac operator on manifolds with polyhedral boundary and its applications"

I will introduce a new index theory for Dirac operators on manifolds with polyhedral boundary and discuss how this theory can be applied to solve Gromov's dihedral extremality conjecture on scalar curvature. This is joint work with Jinmin Wang and Zhizhang Xie. This talk will be accessible to non-experts including graduate students.

MC 5501

Thursday, March 23, 2023 — 4:00 PM EDT

Analysis Seminar

Bartlomiej Zawalski, Polish Academy of Sciences

"On affine bodies with rotationally invariant sections"

Thursday, March 23, 2023 — 2:30 PM EDT

Computability Theory Learning Seminar

Luke MacLean, Department of Pure Mathematics, University of Waterloo

"Metatheorems (Part 2)"

We will introduce the game metatheorem of Antonio Montalban and discuss its function. Several examples of its usefulness will be given.

MC 5403

Thursday, March 23, 2023 — 2:30 PM EDT

Geometry & Topology Seminar

Alexander Yampolsky, V.N. Karazin National University, Kharkiv, Ukraine

"Some aspects of geometry of unit vector fields"

Thursday, March 23, 2023 — 10:00 AM EDT

Learning Seminar on Elliptic Curves

Maya Gusak, University of Waterloo

"Elliptic Curve Cryptography"

MC 5403

Wednesday, March 22, 2023 — 2:00 PM EDT

Algebraic Geometry Working Seminar

Francisco Villacis, Department of Pure Mathematics, University of Waterloo

"Integrable System on Smooth Projective Toric Varieties, Part 2"

This is a continuation to my previous talk on building an integrable system on smooth projective toric varieties. In my previous talk, I explained how to view a smooth projective toric variety as a symplectic reduction. In this talk I will briefly review this construction and from here show that the torus action in our variety is Hamiltonian and explain how the integrable system is constructed.

Wednesday, March 22, 2023 — 1:00 PM EDT

Model Theory Working Seminar

Leo Jimenez, Department of Pure Mathematics, University of Waterloo

"Uncollapsed Hrushovski constructions, part 2"

Last week, we constructed the Hrushovski-Fraisse limit of a class of finite relational structures. This week, I will axiomatize these limits and prove they are omega-stable. I will also give a characterization of forking. If time allows, I will show some potential application.

MC 5417

Tuesday, March 21, 2023 — 2:30 PM EDT

Differential Geometry Working Seminar

Christopher Lang, Department of Pure Mathematics, University of Waterloo

"Hyperbolic monopoles with continuous symmetries (part 2)"

Few examples of hyperbolic monopoles exist. By modifying previous work of mine with collaborators, we will discuss a structure theorem for generating highly symmetric hyperbolic monopoles. We will briefly cover general geometric details discussed in my previous talk and focus more on the use of representation theory to generate monopoles and examine some examples generated by the method.

MC 5403

Tuesday, March 21, 2023 — 2:30 PM EDT

Logic Seminar

David Meretzky, University of Notre Dame

"A boundedness condition for differential fields"

Tuesday, March 21, 2023 — 10:00 AM EDT

Number Theory Seminar

Note: The time of this talk is different from the usual Number Theory Seminar time.

Trevor Wooley, Purdue University

"Waring's problem and Freiman's theorem"

Monday, March 20, 2023 — 2:30 PM EDT

Colloquium

Jason Lotay, Oxford University

"Minimal Lagrangians and where to find them"

Thursday, March 16, 2023 — 4:00 PM EDT

Analysis Seminar

Roberto Hernandez Palomares, Department of Pure Mathematics, University of Waterloo

"K-theoretic classification of inductive limit actions of fusion categories on AF C*-algebras"

Thursday, March 16, 2023 — 2:30 PM EDT

Computability Theory Learning Seminar

Rachael Alvir, Department of Pure Mathematics, University of Waterloo

"Even More Effectively Closed Sets"

An effectively closed set (or $\Pi^0_1$ class) in Baire space $\omega^\omega$ is the set $[T]$ of infinite branches through a computable tree $T$. This semester in the computability seminar, we will be studying $\Pi^0_1$ classes from Cenzer \& Remmel's textbook. This week we will continue proving an effective version of the perfect set theorem.

MC 5403

Thursday, March 16, 2023 — 2:30 PM EDT

Geometry & Topology Seminar

Lisa Marquand, Stony Brook University

"Symplectic Birational Involutions of manifolds of OG10 type"

Thursday, March 16, 2023 — 10:00 AM EDT

Learning Seminar on Elliptic Curves

Eric Boulter, Department of Pure Mathematics, University of Waterloo

"Rational points on elliptic curves"

MC 5403

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