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Events - March 2020

Friday, March 13, 2020 — 3:03 PM EDT

Ken Davidson, Department of Pure Mathematics, University of Waterloo

"Interpolation and duality in algebras of multipliers"

Wednesday, March 11, 2020 — 2:30 PM EDT

Rahim Moosa, Department of Pure Mathematics, University of Waterloo

"Dynamics on the Berkovich line II"

I will continue to discuss how algebraic dynamics on the affine or projective line extend to the Berkovich  line. My aim is still Theorem 4.7 of Jonsson's notes.

MC 5403

Tuesday, March 10, 2020 — 2:30 PM EDT

Hongdi Huang, Department of Pure Mathematics, University of Waterloo

"On Hopf Ore Extensions and Zariski Cancellation Problems"

Tuesday, March 10, 2020 — 2:00 PM EDT

Luke MacLean, Department of Pure Mathematics, University of Waterloo

"Kleene's $\mathcal{O}$"

A computable ordinal is one that corresponds to the order type of some computable linear well ordering. It can be shown that these are a subset of the countable ordinals, but there is still an issue on how to name these ordinals. We would like a system of notation that allows us to compare two arbitrary ordinals.

Tuesday, March 10, 2020 — 1:30 PM EDT

Siddhi Pathak, Penn State University

"Convolution of values of the Lerch zeta-function"

Tuesday, March 10, 2020 — 10:30 AM EDT

Christopher Hawthorne & Wilson Poulter, Department of Pure Mathematics, University of Waterloo

"NIP XIV"

We continue section 4.2 of Simon's Guide to NIP theories.

MC 5479

Tuesday, March 10, 2020 — 10:00 AM EDT

Ben Anderson-Sackaney, Department of Pure Mathematics, University of Waterloo

We will begin discussing Frobenius algebras.

MC 5417

Monday, March 9, 2020 — 4:00 PM EDT

Andrew Putman, University of Notre Dame

"The topology of the moduli space of curves"

The moduli space of curves is a remarkable space with connections to algebraic geometry, complex analysis, differential geometry, and low-dimensional topology.  I'll give an elementary introduction to it and discuss some recent work on its topology.

MC 5501

Friday, March 6, 2020 — 3:30 PM EST

Hayley Reid, Department of Pure Mathematics, University of Waterloo

"The Law of Quadratic Reciprocity"

Friday, March 6, 2020 — 3:00 PM EST

Gavin Ball, Université du Québec à Montréal and Centre de recherches mathématiques

"Closed G2-structures inducing a conformally flat metric"

Wednesday, March 4, 2020 — 2:30 PM EST

Rahim Moosa, Department of Pure Mathematics, University of Waterloo

"Dynamics on the Berkovich line"

I will discuss how algebraic dynamics on the affine or projective line extend to the Berkovich  line. My aim is Theorem 4.7 of Jonsson's notes.

MC 5403

Tuesday, March 3, 2020 — 2:00 PM EST

Luke MacLean, Department of Pure Mathematics, University of Waterloo

"Kleene's $\mathcal{O}$"

Kleene's $\mathcal{O}$ is a system for ordinal notation used in computability theory that relates the concepts of constructive and computable ordinals. This notation allows one to unambiguously perform transfinite induction on ordinals by ensuring that there is a unique representation for each ordinal.

We will prove some properties about the notation system and show that there are ordinals which are not computable.

MC 5413

Tuesday, March 3, 2020 — 1:30 PM EST

Sacha Mangarel, Centre de Recherches Mathématiques

"On Low Discrepancy Multiplicative Sequences"

Tuesday, March 3, 2020 — 10:30 AM EST

Wilson Poulter, Department of Pure Mathematics, University of Waterloo

"NIP XIII"

We continue section 4.1 of Simon's Guide to NIP theories.

MC 5479

Tuesday, March 3, 2020 — 10:00 AM EST

Hongdi Huang, Department of Pure Mathematics, University of Waterloo

In the half part, we will complete the leftover on the generators and relations. Then we will setup for Frobenius algebras. Finally, we will go-ahead to the algebra structure. 

MC 5417

Monday, March 2, 2020 — 4:00 PM EST

Ilan Hirshberg, Ben Gurion University of the Negev

"Mean dimension and radius of comparison"

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