Mathematics Colloquium

Date: Time: 4:00 pm–4:50 pm
Avery Hall Room: 115
Additional Info: AVH
Contact: Steven Cohn, 402-472-7223, scohn1@unl.edu
Alexander Zupan (UNL) will present “Knotty Unknots.” Hosted by Yvonne Lai.

Knot theory involves studying embedded loops in 3-dimensional space. The simplest such loop, the unknot, bounds a disk, and a motivating problem is to efficiently recognize when a tangled mess is actually the unknot. One approach to this problem is to pick the right measure of complexity and then try to show that every presentation of the unknot can be trivialized without increasing the complexity. This talk will be accessible to undergraduate students.

Refreshments will be served in 348 Avery, 3:30-4:00. The talk is free and open to the public.

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