The speaker will give an introduction for non-specialists, followed by a 40 min-long conference-level presentation. The talk will be followed by a discussion session, around an article presentation by a student. 

Prerequisite: For each session, the speaker will provide a review to read beforehand, and do a brief introduction at the beginning with what is needed to understand his/her lecture. Hence no prerequisite is required as long as the student is motivated enough by the topic to read the bibliography provided by the speakers before the sessions.