Eremenko’s Conjecture and Wandering Lakes of Wada

CDSNS Colloquium
Friday, April 12, 2024 - 3:30pm for 1 hour (actually 50 minutes)
Skiles 254
James Waterman – Stonybrook University – james.waterman@stonybrook.edu
Keagan Callis

In 1989, Eremenko investigated the set of points that escape to infinity under iteration of a transcendental entire function, the so-called escaping set. He proved that every component of the closure of the escaping set is unbounded and conjectured that all the components of the escaping set are unbounded. Much of the recent work on the iteration of entire functions is involved in investigating properties of the escaping set, motivated by Eremenko's conjecture. We will begin by introducing many of the basic dynamical properties of iterates of an analytic function, and finally discuss constructing a transcendental entire function with a point connected component of the escaping set, providing a counterexample to Eremenko's conjecture. This is joint work with David Martí-Pete and Lasse Rempe.