Co-organized with C. Bibby, F. Callegaro, M. Yoshinaga. Lugano, Switzerland. June 27 - July 2, 2022.

Co-organized with C. Bibby, F. Callegaro, M. Yoshinaga. Online event, June 30 - July 1, 2021.

Lecture (-series) for mathematics teachers. University of Fribourg, January 17, 2021.

Co-organized with Jan Draisma, Elisa Gorla, Joachim Rosenthal. University of Bern, July 9-13, 2019.

University of Fribourg, Switzerland. August 28-29, 2017.

Organized with F. Callegaro, C. De Concini, G. Gaiffi, A. suciu, M. Yoshinaga.
Centro De Giorgi, Scuola Normale Superiore, Pisa. June 7-10, 2017

Organized with F. Callegaro, C. De Concini, G. Gaiffi, A. suciu, M. Yoshinaga.
University of Pisa, Pisa, Italy. June 6, 2017

Organized with E.-M. Feichtner
Minisymposium at the European Mathematical Congress 2016. Berlin, Germany. July 20, 2016

Fribourg, Switzerland. June 6-8, 2016

(Borel Seminar 2016, organized jointly with Laura Anderson and Elisa Gorla)
Les Diablerets, Switzerland. January 25-29, 2016

(jointly with Ivan Martino). Fribourg, Switzerland. February - May, 2015.

(organized jointly with Elisa Gorla and Relinde Jurrius). Neuchâtel, Switzerland. March 25-27, 2015

(organized jointly with Bruno Benedetti and Luca Moci)

(organized jointly with Michael Falk and Eva-Maria Feichtner). University of Bremen, Germany.