This event is in the past.It took place on December 3, 2025 at Evans Hall.
Educational Talk
Educational TalkDive into 4-dimensional knot theory as Stanford's Qianhe Qin reveals how to measure slicing degrees using Rasmussen invariants, knot Floer homology, and playfully named "sporks."
Advanced mathematics
Topology & geometry
Graduate-level
UC Berkeley
Topology Seminar: How to Pick Out the Slicing Degree of Knots Using a Spork
Northside
Educational TalkEducational TalkDive into 4-dimensional knot theory as Stanford's Qianhe Qin reveals how to measure slicing degrees using Rasmussen invariants, knot Floer homology, and playfully named "sporks."
Advanced mathematics
Topology & geometry
Graduate-level
UC Berkeley
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