Events by month

Benjamin Steinberg, City College of New York

"Groupoid algebras and C*-algebras"

Ross Willard, Department of Pure Mathematics, University of Waterloo

“Adding Gaussian elimination to local consistency checking - 4”

Jonathan Herman, Pure Mathematics, University of Waterloo

"Totally Geodesic Immersions"

Ehsaan Hossain, Department of Pure Mathematics, University of Waterloo

“Goodbye K0 ... Hello K1!”

David McKinnon, Department of Pure Mathematics, University of Waterloo

“Integral points on punctured varieties”

Suzanne Findleton, Pure Mathematics, University of Waterloo

"Gluing constructions and separated schemes"

In this talk, we explain how one can obtain new schemes by gluing together a collection of schemes. This is known as the "gluing construction", which can produce for example projective n-space over a given ring. We also introduce the notion of a separated scheme and explain its relation to Hausdorffness.

Xiangwen Zhang, Columbia University 

“ALEXANDROV’S UNIQUENESS THEOREM FOR CONVEX SURFACES”

James A. Mingo, Queen’s University

“Freeness and the Transpose”

Ross Willard, Pure Mathematics, University of Waterloo

"Adding Gaussian elimination to local consistency checking - 5"

In this fifth of several lectures, I continue the analysis of
singular pairs of variables, studying their effect on the congruence
lattice of their associated constraint relation.

Spiro Karigiannis, Pure Mathematics, University of Waterloo

"Intro to Calibrations, Instantons, and Branes"

Mohammad Mahmoud, Department of Pure Mathematics University of Waterloo

“Goncharov’s Theorem”

We continue through the proof of Goncharov’s Theorem from Mcpherson’s research paper.

Jack Huizenga, University of Illinois at Chicago

"Interpolation problems in algebraic geometry"

Philip Xiao, Pure Mathematics, University of Waterloo

"K-theory of C*-algebras and of topological spaces -- Part II"

Ty Ghaswala, Pure Mathematics, University of Waterloo

"Grothendieck, Whitehead and a reasonably short exact sequence"

For an ideal $I \triangleleft R$, we will define the relative $K$-groups $K_0(R,I)$, $K_1(R,I)$ and talk about the (not long, not short, but just right) exact sequence.  This sequence will provide us with a useful tool for computing $K$-groups.

Patrick Ingram, University of Colorado

"The arithmetic of postcritically finite maps"

Peter Sarnak, Princeton University

“Randomness in geometry - the topology of random real hypersurfaces and percolation”

Ty Ghaswala, Department of Pure Mathematics, University of Waterloo

“Schemes of the Separated Variety”

Lorenzo Foscolo, Stony Brook University

"Moduli spaces of monopoles and gravitational instantons"

Nicola Watson, University of Toronto

"Classification, Covering Dimension and Lifting Properties"

Matthew Kennedy, Carleton University

"Operator algebras and analytic group theory"

Jon Herman, Pure Mathematics, University of Waterloo

“Geometric Interpretations of Curvature”

Sam Eisenstat, Department of Pure Mathematics, University of Waterloo

“Computable Model Theory of Torsion-Free Abelian Groups”

Phillip Xiao, Department of Pure Mathematics, University of Waterloo

We’ve seen the definition of K1 and a six term exact sequence, but we still have no intuition for what they are and how to compute them. This talk will be devoted to filling that gap by showing you some examples.

David Savitt, University of Arizona

"Galois Representations"

Lassina Dembele, University of Warwick

“Supercuspidal types and the Jacquet-Langlands correspondence for GL2”

Boyu Li, Department of Pure Mathematics, University of Waterloo

“Asymptotic Distributions of Noncrossing Partitions”

Robert Garbary, Department of Pure Mathematics, University of Waterloo

“Separated and Proper Maps”

Jingbo Xia, SUNY Buffalo

“Hankel operators in Lorentz ideals”

Savdeep Sethi, University of Chicago

“Triples, Instantons and Domain Walls”

Xiaoheng Jerry Wang, Princeton University

“Rational points on hyperelliptic curves”

Paul Skoufranis, Texas A&M University

“Free Probability for Pairs of Faces”

Spiro Karigiannis, Pure Mathematics Department, University of Waterloo

“Calibrations, Instantons, and Branes: Part II”

Alexander Berenbeim, Department of Pure Mathematics, University of Waterloo

“What Is Equivalence?: An Introduction to weak ω-groupoids”

Alan Thompson, Department of Pure Mathematics, University of Waterloo

“Yet more separatedness, and an introduction to projective schemes”

Steven Gindi, Department of Pure Mathematics, University of Waterloo

“Holomorphic Twistor Spaces and Bihermitian Geometry”

Matthew Mazowita, Department of Pure Mathematics, University of Waterloo

“Weights and topological centres”