Ralph Kopperman
- rdkcc@ccny.cuny.edu
- Office
- NA6/291A
- Office phone
- (212) 650-5125
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 2009: Math 34700-EF, M,W 2:00-3:40, Room 4224
- Spring 2009: Math A4400-FG, M,W 4:00-5:40, Room 6329
- Fall 2008: Math 20100-JW, M,W 8:00-9:40pm, Room NA 5102
- Fall 2008: Math 31800-GH, M,W 6:00-7:40, Room NA 6328
- 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
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