Monday June 16th, 2025 | |
Time: | 11:00 AM - 12:05 PM |
Title: | Computing with Thurston maps |
Speaker: | Laurent Bartholdi, Saarland University |
Abstract: | |
Thurston maps are branched coverings of the 2-sphere all of whose critical points have finite orbits. They admit an algebraic avatar, a set with two commuting actions of a free group. I will present some computer code that translates between these two worlds, and show its usefulness in studying twists, matings, obstructions etc. |