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Tuesday, January 22, 2019 — 10:30 AM EST

David McKinnon, Department of Pure Mathematics, University of Waterloo

"Definable complex analytic spaces"

I'm going to talk about definable spaces, and then start on a discussion of section two of the paper of Bakker-Brunebarbe-Tsimmerman.

MC 5479

Tuesday, January 22, 2019 — 12:30 PM EST

Daniel Smertnig, Department of Pure Mathematics, University of Waterloo

"On basic and Bass quaternion orders"

Tuesday, January 22, 2019 — 5:00 PM EST

Christopher Hawthorne, Department of Pure Mathematics, University of Waterloo

"Cryptographic primitives and applications"

Wednesday, January 23, 2019 — 3:30 PM EST

Guy Salomon, Department of Pure Mathematics, University of Waterloo

"Hyperrigid subsets of Cuntz–Krieger algebras and the property of rigidity at zero”

Wednesday, January 23, 2019 — 3:30 PM EST

Mohammad Mahmoud, Department of Pure Mathematics, University of Waterloo

"The Isomorphism Problem for Pregeometries"

Thursday, January 24, 2019 — 3:00 PM EST

Ross Willard, Department of Pure Mathematics, University of Waterloo

"Dualizing structures that are necessarily of infinite signature"

Thursday, January 24, 2019 — 4:00 PM EST

Patrick Speissegger, McMaster University

"Limit cycles of planar vector fields, Hilbert’s 16th problem and o-minimality"

Friday, January 25, 2019 — 8:00 AM to 6:00 PM EST
3D polytope model

Pop by the Mathematics 3 (M3) Atrium any time throughout the day and watch as the omnitruncated dodecaplex comes together. Piece-by-piece the 3D polytope model will be put together by Professor Benoit Charbonneau and student, staff, and faculty volunteers. At the end of the day it will rise up and be a permanent art installation in M3.

Friday, January 25, 2019 — 1:30 PM EST

Siddharth Mathur, University of Arizona

"Azumaya Algebras and the Resolution Property"

Azumaya algebras, are (etale) twisted forms of matrix rings. These objects are of great utility because they give rise to Brauer classes. Fifty years ago, Grothendieck asked whether every cohomological Brauer class has a corresponding Azumaya algebra. This question is still open even for smooth separated threefolds over the complex numbers!

Monday, January 28, 2019 — 4:00 PM EST

Michael Lipnowski, McGill University

"Algorithms for the topology of arithmetic groups"

Integer matrix Lie groups \Gamma carry extremely deep arithmetic information.  Topological invariants of \Gamma are particularly interesting.  I will describe an algorithm which, given \Gamma, computes the homology of \Gamma together with the action of certain correspondences on it (Hecke operators).  Joint work with Aurel Page.

MC 5501

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