We have temporarily deactivated the functionality for registering as a new user, due to a recent wave of spam in the interest groups. If you would like to register, please contact us here: firstname.lastname@example.org
Due to technical issues with the video management system, the recordings of Lecture 9 (and the guest lectures) are not available yet. We're working on a fix and hope to publish the recordings early next week. We apologize for the inconvenience.