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