**SMS scnews item created by Stephan Tillmann at Mon 21 Mar 2016 0936**

Type: Seminar

Distribution: World

Expiry: 20 Jun 2016

**Calendar1: 13 Apr 2016 1200-1300**

**CalLoc1: Carslaw 535A**

CalTitle1: Why one should fry pancakes in \(SL_3(\mathbb{R})\)

Auth: tillmann@p710.pc (assumed)

### Geometry & Topology

# Why one should fry pancakes in \(SL_3(\mathbb{R})\)

### Michael Bjorklund (Chalmers University)

Wednesday 13 April 2016 from 12:00–13:00 in Carslaw 535A

Please join us for lunch after the talk!

**Abstract:**
One of the main real-world applications of quasicrystals is
Teflon; a material often used in frying pans. With every turn of a pancake, some of
the Teflon is scraped off, and eventually enough Teflon has been lost to render the pan
useless. In this talk, I want to discuss another way to produce Teflon-type
materials, but this time in \(SL_3(\mathbb{R})\) (which has Property (T)), and not in \(\mathbb{R}^2\) (which does
not have Property (T)). Successful productions of this material will allow you to fry
(8-dimensional) pancakes forever. A more mathematical summary of the stuff
that will be discussed during the talk can be found under the link:
http://arxiv.org/abs/1602.08928
Joint work with Tobias Hartnick (Technion) and Felix Pogorzelski (Technion).