CGTA distinguished lecture 2024: Prof David Gabai (Princeton) Event
- Time:
- 15:00 - 16:00
- Date:
- 10 June 2024
- Venue:
- Building 54 /4011 (Lecture Theatre 4A), Highfield Campus, University of Southampton
For more information regarding this event, please email Professor Jelena Grbic at j.grbic@soton.ac.uk .
Event details
With a great pleasure we will host Professor David Gabai (Princeton), speaking about "Light bulbs, barbells and diffeomorphisms of 4-manifolds".
Title: Light bulbs, barbells and diffeomorphisms of 4-manifolds
Abstract: We describe some very concrete 4-dimensional constructions and show how they lead to results in smooth 4-dimensional topology. In particular, we will describe the 4-dimensional light bulb theorem and a diffeomorphism of the 4-dimensional barbell. We apply the barbell map to construct knotted 3-balls in the 4-sphere and diffeomorphisms of hyperbolic 4-manifolds homotopic but not isotopic to the identity. Much of this is joint work with Ryan Budney.
Speaker information
David Gabai,Princeton University, USA,Hughes-Rogers Professor of Mathematics at Princeton University, Oswald Veblen Prize laureate, fellow of the American Mathematical Society, member of the American Academy of Arts and Sciences, invited speaker in the International Congress of Mathematicians (Photo by Reina Gabai)