Use this web site to download each Zoom lecture, the lecture slides, homework and all announcements. Please pay attention to the dates of the announcements with the most recent one on the top and the earliest ones at the bottom. The class emails will complement the material available here and most announcements will also be available in email. You can use Zoom, phone or email to communicate with Prof. Gross and Adriano. The answer to any question a student in the class may ask will be shared with all the students in the class. Please state explicitly when you ask a question if you wish to not have your name mentioned in the response.