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Events

Tuesday, November 29, 2016 — 3:30 PM EST

Renzhi Song, Department of Pure Mathematics, University of Waterloo

“Series parallel posets and NU polymorphisms”

In this talk I will try to explain what series parallel posets are and how to find 5-ary NU polymorphism on them.

QNC 1507

Tuesday, November 29, 2016 — 3:30 PM EST

Michael Deveau, Department of Pure Mathematics, University of Waterloo

“Hereditarily Finite Superstructures - Part 2”

Monday, November 28, 2016 — 4:00 PM EST

Benjamin Hayes, Vanderbilt University

“Fuglede-Kadison determinants and sofic entropy”

Friday, November 25, 2016 — 4:00 PM EST

Michael Wibmer, University of Pennsylvania

Groups defined by algebraic difference equations

Friday, November 25, 2016 — 2:30 PM EST

Francesco Sala, Kavli Institute for the Physics and the Mathematics of the Universe

“Moduli spaces and stacks of sheaves on resolutions of toric singularities”

Friday, November 25, 2016 — 11:30 AM EST

Hongdi Huang, Pure Mathematics, University of Waterloo

"Hopf Modules and Integrals"

Let $H$  be a hopf algebra. We will prove the fundamental theorem of $H$ hopf modules.  After that we investigate the connection between integrals and the rational part of $H^*$.

Thursday, November 24, 2016 — 4:00 PM EST

Stefan Steinerberger, Yale University

“Mysterious New Interactions between Analysis and Number Theory”

Thursday, November 24, 2016 — 2:30 PM EST

Bradd Hart, University of McMaster

"Logical unification"

I will talk on preliminary work on the role of [0,1]-valued
logic in unifying the growing number of first order logics. In
particular, elementary classes in [0,1]-valued logic are CATs in the
sense of Ben Yaacov and the class of von Neumann algebras with faithful
actions on Hilbert spaces form an elementary class.

Thursday, November 24, 2016 — 1:30 PM EST

Sneha Chaubey, University of Illinois

“Proportion of zeros of combinations of derivatives of Riemann-Xi function on the critical line”

Wednesday, November 23, 2016 — 4:00 PM EST

Satish Pandey, Pure Mathematics, University of Waterloo

"The Dinitz Problem and Five-Colouring Plane Graphs"

G. H. Hardy firmly believed that there is no permanent place for ugly Mathematics. Following his dictum, Paul Erdos liked to talk about "The Book" in which God maintains the perfect proofs for mathematical theorems. This talk is an attempt to explore Erdos'  idea of perfect proofs, and the territory we choose to explore is graph theory.

Monday, November 21, 2016 — 4:00 PM EST

Vorrapan Chandee, Burapha University

“Moments of L-functions”

Friday, November 18, 2016 — 3:30 PM EST

Ignacio Garcia, Department of Pure Mathematics, University of Waterloo

“Assouad dimensions of complementary sets”

Friday, November 18, 2016 — 2:30 PM EST

Tom Baird, Memorial University of Newfoundland 

“The moduli space of Higgs bundles over a real curve and the real Abel-Jacobi ”

Friday, November 18, 2016 — 11:30 AM EST

Ehsaan Hossain, Department of Pure Mathematics, University of Waterloo

“Polycyclic groups and primitive group rings”

Thursday, November 17, 2016 — 3:00 PM EST

Gregory Chambers, University of Chicago

“Problems in Quantitative Geometry”

Thursday, November 17, 2016 — 2:00 PM EST

**Please note change of time**

Michael Wan, University of California, Berkeley

“Towards a model theory of almost complex manifolds”

Thursday, November 17, 2016 — 1:30 PM EST

Edward Lee and Ilia Chtcherbakov, University of Waterloo

“Topos Theory VI”

We finish off chapter 6 of Goldblatt: we discuss logical semantics in the context of an arbitrary topos. We then begin chapter 5: we see some first categorical properties of topoi.

MC 5403

Thursday, November 17, 2016 — 12:30 PM EST

Nickolas Rollick, Department of Pure Mathematics, University of Waterloo

“The grand scheme of things”

Wednesday, November 16, 2016 — 4:30 PM EST

Kanstantsin Pashkovich, Combinatorics & Optimization, University of Waterloo

"Four Dimensional Polytopes of Minimum Positive Semidefinite Rank"

For a given polytope the smallest size of a semidefinite extended  
formulation can be bounded from below by the dimension of the polytope  
plus one. This talk is about polytopes for which this bound is tight,  
i.e. polytopes with positive semidefinite (psd) rank equal to their  
dimension plus one.

Wednesday, November 16, 2016 — 4:00 PM EST

Aaron Tikuisis, University of Aberdeen

“C*-algebras: quasidiagonality and amenability”

Wednesday, November 16, 2016 — 1:00 PM EST

Christopher Hawthorne, Department of Pure Mathematics, University of Waterloo

“Continuous model theory IV”

We begin section 5 of Model theory for metric structures; we present ultraproducts and, time permitting, compactness.

MC 5403

Tuesday, November 15, 2016 — 3:30 PM EST

Jonathan Stephenson, Department of Pure Mathematics, University of Waterloo

“The Adjacency Relation”

We will show that the adjacency relation is structurally complete in linear orders, by expressing rice relations in terms of universal sentences over it.

MC 5417

Tuesday, November 15, 2016 — 11:00 AM EST

Charles W. Clark, National Institute of Standards and Technology 

“Twisting the neutron wavefunction”

Friday, November 11, 2016 — 4:00 PM EST

Lorenzo Foscolo, Stony Brook University

“New Einstein metrics on the 6-sphere and the product of two 3-spheres, nearly K ̈ahler 6-manifolds and G2 cones”

Friday, November 11, 2016 — 3:10 PM EST

Ehsaan Hossain, Department of Pure Mathematics, University of Waterloo

“Polycyclic groups”

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