All events are in Central time unless specified.

Friday, September 15


Alex Zupan, University of Nebraska

Visualizing knotted surfaces in dimension four

4:00 pm – 4:50 pm
Location: Avery Hall Room: 115
Classical knot theory considers embedded loops in 3-dimensional space up to smooth deformations that don’t bend or break the loop. In dimension four, the interesting knotted objects are not loops (which are 1-dimensional) but rather surfaces (which …