Office Hours

Fall 2021

I can be reached in various ways:

  • by e-mail at hhv1@tc.columbia.edu (24/7). I mostly succeed in responding within 48 hours
  • in person: from 3 to 5 on Tuesdays and Thursdays (while appointments are not necessary, it is best to e-mail me to say that you intend to drop by, and at what time, as I may have stepped out of the office)
  • If absolutely necessary, I am also available by appointment via Zoom (set up via e-mail) about every morning and late afternoon, Monday through Thursday

Spring 2022

Same as in the Fall