Events by month

December 2022

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Thursday, December 1, 2022 — 10:30 to 10:30 AM EST

Xinyue (Cynthia) Xie & Layth Al-Hellawi, Department of Pure Mathematics, University of Waterloo 

"Effectiveness properties of the Walker's Cancellation Theorem - Part IV"

Thursday, December 1, 2022 — 1:00 PM EST

Sean Monahan, Department of Pure Mathematics, University of Waterloo

Local structure results and toroidal horospherical varieties

I plan to talk about some local structure results for horospherical varieties, and look at the special case of so-called “toroidal” horospherical varieties. As of right now, this should be the last talk of the semester; we plan to continue next term (possibly at a new time/location).

This seminar will be held jointly online and in person:

Thursday, December 1, 2022 — 2:30 PM EST

Eric Riedl, University of Notre Dame

"Plane curves, log tangent sheaves and the Geometric Lang-Vojta Conjecture"

Tuesday, December 6, 2022 — 2:00 PM EST

Paul Cusson, Department of Pure Mathematics, University of Waterloo

"A proof of the Newlander-Nirenberg Theorem"

Tuesday, December 6, 2022 — 4:00 PM EST

Yash Singh, Department of Pure Mathematics, University of Waterloo

"Galois theory and the Jugendtraum"

The talk will be a gentle introduction to Galois theory and the problem of abelian extensions of number fields known as Kronecker's Jugendtraum. We also focus on a particular case of this problem which will showcase a remarkable connection with elliptic curves.

MC 5501

Thursday, December 8, 2022 — 2:30 PM EST

Adrian Zahariuc, University of Windsor

"Configurations of points modulo translation"

Thursday, December 8, 2022 — 4:30 PM EST

Rian Neogi, Combinatorics & Optimization, University of Waterloo

"The Birth of Computation"

In 1928, Hilbert posed the Entscheidungsproblem, which is informally stated as follows: "Given a mathematical statement, is there a well-defined procedure by which one can decide whether the statement is true or false?". This is a natural question for mathematicians to ask. Essentially the question asks whether one can solve mathematical problems in some automatic and structured manner, or must we rely on human insight, wit and intuition?

Thursday, December 15, 2022 — 2:30 PM EST

Hongyi Liu, University of California, Berkeley

"A compactness theorem for hyperkähler 4-manifolds with boundary"

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