from Universidad de Buenos Aires
to Universidad Autonoma de Madrid
from 1 May 2018 to 24 June 2018
from 6 May 2019 to 15 July 2019
from 30 November 2022 to 1 March 2023
The secondment was devoted to the study of Hilbert subspaces with invariance for noncommutative groups, with a special focus on crystallographic groups, with the purpose of finding the generators of the best approximation.