Seminar series
Date
Wed, 16 Jan 2019
16:00
16:00
Location
C1
Speaker
Matthias Nagel
Organisation
Oxford University
Knot theory investigates the many ways of embedding a circle into the three-dimensional sphere. The study of these embeddings is not only important for understanding three-dimensional manifolds, but is also intimately related to many new and surprising phenomena appearing in dimension four. I will discuss how four-dimensional interpretations of some invariants can help us understand surfaces that bound a given link (embedding of several disjoint circles).