I will be at a workshop at Warwick, UK, during the week of December 10. This means the last class meeting will be Friday, December 7. I plan to organize a seminar "Algebra, Geometry, and Physics" next term and will speak in it every now and then (at least three times, though, to make up for the canceled classes this term:-).
My office hours are Mondays 2:30-3:30 p.m. and Wednesdays 3:35-4:30 p.m. You should regard these not as a restriction but a guaranteed way to see me. Otherwise, you are welcome to see me any time you are able to get hold of me or by appointment.
The course runs on a new schedule, starting Monday, September 10: MWF 12:20-1:10 PM. The new room is VinH 206.