Events by month

September 2021

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Wednesday, September 22, 2021 — 4:00 PM EDT

Kenneth Davidson, Department of Pure Mathematics, University of Waterloo

"Strongly Peaking Representations and Compressions of Operator Systems"

We are seeking unitary invariants for d-tuples of operators and more generally for operator systems. However an operator system generally has many completely isometric representations on Hilbert space. So a strong minimality condition is required, and not all operator systems have such a representation.

Tuesday, September 28, 2021 — 10:00 to 10:00 AM EDT

Sean Monahan, Department of Pure Mathematics, University of Waterloo

"An introduction to toric stacks"

Tuesday, September 28, 2021 — 4:30 PM EDT

Andrej Vukovic, Department of Pure Mathematics, University of Waterloo

"Why You Should Care about Discriminants"

You've all made the acquaintance of the humble discriminant b^2 - 4ac of a binary quadratic form because of its appearance under the square root in the quadratic formula. And if you've studied algebraic number theory, you know that algebraic number fields have discriminants too. But did you know that discriminants have connections to the study of vision and black hole thermodynamics? 

Wednesday, September 29, 2021 — 2:30 PM EDT

Spiro Karigiannis, Department of Pure Mathematics, University of Waterloo

"Generalized superminimal surfaces and the Weierstrass representation"

Wednesday, September 29, 2021 — 4:00 PM EDT

Jintao Deng, Department of Pure Mathematics, University of Waterloo

"The K-theory of Roe algebras and the equivariant coarse Baum-Connes conjecture"

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