The defense will take place on Thursday 19th at 2:00 pm by videoconference. It will be possible to attend the defense by clicking on the following link: https://univ-grenoble-alpes-fr.zoom.us/j/94259917956?pwd=K1VJU3B6UjR0eDZtUlZkSjV6NGhlQT09 The thesis will be defended in English and the jury is composed of: Eric Lajeunesse,