# Past talks since 2016

# 2021

# 2020

*Polymake.jl: A new interface to polymake*during ICMS 2020 Session: The Jupyter Environment for Computational Mathematics

# 2019

- Buildings, Varieties, and Applications November 11 - 13, 2019, MPI für Mathematik in den Naturwissenschaften Leipzig
- September 2019,
*$\operatorname{Aut}(F_n)$ has property (T)*,**Outer Space in Bielefeld**, Bielefeld, Germany (plenary talk) - June 2019,
*$\operatorname{Aut}(F_n)$ has property (T)*,**Rigidity**conference, Warsaw, Poland (plenary talk) - February 2019,
*Computational aspects of property (T)*, seminar talk,**RWTH**, Aachen, Germany - January 2019,
*Non-commutative positivity and Kazhdan’s property (T)*, seminar talk,**University of Innsbruck**, Innsbruck, Austria - January 2019,
*Non-commutative positivity and Kazhdan’s property (T)*, seminar talk,**Tokyo University of Science**, Tokyo, Japan - January 2019,
*On property (T) for $\operatorname{Aut}(F_n)$ and $\operatorname{SL}_n(\mathbb{Z})$*, seminar talk,**University of Tokyo**, Tokyo, Japan - January 2019,
*On property (T) for $\operatorname{Aut}(F_n)$ and $\operatorname{SL}_n(\mathbb{Z})$*, seminar talk,**University of Kagoshima**, Kagoshima, Japan

# 2018

- December 2018,
*$\operatorname{Aut}(F_5)$ has property (T)*at**The 45th Symposium on Transformation Groups**, Kumamoto, Japan - December 2018,
*On property (T) for $\operatorname{Aut}(F_n)$ and $\operatorname{SL}_n(\mathbb{Z})$*, seminar talk,**RIMS**, Kyoto, Japan - September 2018,
*Computational aspects of property (T)*at**Joint meeting of the Italian Mathematical Union, the Italian Society of Industrial and Applied Mathematics and the Polish Mathematical Society**, Wrocław, Poland - July 2018,
*Non-commutative positivity and property (T)*, seminar talk,**TU Berlin**, Berlin, Germany - June 2018,
*Computational aspect of property (T)*, at**International Conference on Manifolds, Groups and Homotopy**, Isle of Skye, Scotland

# 2017

- June 2017,
*Certifying numerical estimates of spectral gaps*, at**Applied Topology**, Będlewo, Poland

# 2016

- August 2016,
*Introduction to property (T)*, short course at**Glances@Manifolds II**, Kraków, Poland