- in person in room 720F of Phillips Hall (a.k.a. the Academic Center);
- via e-mail at dullman <"at" sign> gwu <"dot"> edu;
- by telephone at (202)-994-6343; or
- through postal mail at
Department of Mathematics
801 22nd Street, NW
Phillips Hall, Room 720F
George Washington University
Washington, DC 20052.
I hold regular office hours during the fall and spring semesters.