# Events

Tuesday, May 23, 2017 — 11:00 AM EDT

## Computability Learning Seminar

Michael Deveau, Department of Pure Mathematics, University of Waterloo

“Computable Functors and Effective Interpretability”

Tuesday, May 23, 2017 — 11:30 AM EDT

## Student Number Theory Seminar

Stephen Wen, Department of Pure Mathematics, University of Waterloo

“Applications of the zeta function over function fields.”

Tuesday, May 23, 2017 — 2:30 PM EDT

## Geometric Analysis Working Seminar

Anthony McCormick, Department of Pure Mathematics, University of Waterloo

“The Spencer Complex Part 3”

Tuesday, May 23, 2017 — 3:30 PM EDT

## Fractal Geometry Seminar

Vilmos Komornik, University of Strasbourg

"Topological and fractal properties of non-integer base expansions"

Given a base $1<q\le 2$, following R\'enyi (1957) we consider expansions of the form
\begin{equation*}
x=\sum_{i=1}^{\infty}\frac{c_i}{q^i}
\end{equation*}
with digits $c_i$ belonging to $\{0,1\}$. In case $q=2$ of the familiar binary expansions every $x\in [0,1]$ has an expansion, and this is unique except the dyadic rational numbers that have two expansions.

Wednesday, May 24, 2017 — 5:00 PM EDT

## Sieve Methods Learning Seminar

Ertan Elma, Department of Pure Mathematics, University of Waterloo

“Brun’s Sieve, Part 2”

We will finish the proof of the main theorem of Brun’s sieve (section 6.2 of the book An Introduction to Sieve Methods and Their Applications, by R. Murty, C. Cojocaru).

MC 5403

Thursday, May 25, 2017 — 2:30 PM EDT

## Geometric Analysis Working Seminar

Spiro Karigiannis, Department of Pure Mathematics, University of Waterloo

“A new construction of compact G2 manifolds by glueing Eguchi-Hanson spaces, Part III: Fibrewise blow-up by a family of Eguchi-Hanson spaces”

Friday, May 26, 2017 — 1:30 PM EDT

## Algebraic Geometry Seminar

Trevor Gunn, Department of Pure Mathematics, University of Waterloo

“Hyperfields for Tropical Geometry”

### May 2017

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