Ralph Kopperman

I am interested in the foundations of general topology, particularly involving spaces in which a point can be in the closure of another, while the other is not in the closure of the first. These spaces have recently had applications in computer science, especially:

digital topology, in which the computer screen (which looks like a rectangle in the plane but has only a finite number of points),

continuous posets, a branch of computer logic, and

approximation of topological spaces by finite spaces.

Teaching

• Spring 2008: Math 32300-GH, M,W 6:00-7:40pm, Room 4113
• Fall 2007: Fiqws 12201-F, M,W 3:30-4:45, room SH 73
• Fall 2007: Math A6300-GH, M,W 6:00-7:40, Room NA 6329
• Spring 2007: Math 20100-JW, M,W 8:00-9:40pm, Room 6113
• Spring 2007: Math 20200-GH, M,W 6:00-7:40pm, Room 4115