Nielsen Realization for Rational 4-Manifolds
Algebra Seminar
29th October 2024, 4:00 pm – 5:00 pm
Fry Building, 2.04
The cyclic Nielsen realization problem for a closed, oriented manifold asks whether any mapping class of finite order can be represented by a homeomorphism of the same order. This talk focuses on the Nielsen problem for smooth 4-manifolds underlying del Pezzo surfaces. I will present joint work with Seraphina Lee and Sidhanth Raman comparing the smooth, metric, and complex versions of the Nielsen realization problem for irreducible mapping classes.
Organisers: Jack Saunders, Vlad Vankov
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