I am a Professor of Mathematics at Dalhousie University.
Note, August 20, 2025: There is a labour dispute at Dalhousie University, and Dalhousie has taken the unprecedented action of locking out its unionized faculty. We have also been locked out of our Dalhousie email. I will not be able to receive any messages sent to my Dalhousie email address until this labour dispute ends. In the meantime, you can reach me at selinger1970@gmail.com.