Abstracts

Week of December 7, 2025

December 8, 2025
Hahn Lecture Series Entropy: From algebraic integers to dynamics on surfaces 4:00pm -
KT 101

These lectures will describe connections between dynamical systems and topics including algebraic geometry, number theory,
unipotent flows and fractal Jordan curves.

All talks will be for a general audience, and no talk is a prerequisite for any other.
December 9, 2025
Geometry & Topology TBA 11:00am -
KT 211

TBA
Hahn Lecture Series Billiards and moduli spaces 3:30pm -
KT101

These lectures will describe connections between dynamical systems and topics including algebraic geometry, number theory,
unipotent flows and fractal Jordan curves.

All talks will be for a general audience, and no talk is a prerequisite for any other.
December 10, 2025
Hahn Lecture Series The question mark function, welding and complex dynamics 3:30pm -
KT 14th floor

These lectures will describe connections between dynamical systems and topics including algebraic geometry, number theory,
unipotent flows and fractal Jordan curves.

All talks will be for a general audience, and no talk is a prerequisite for any other.
December 12, 2025
Friday Morning Seminar Friday Morning Seminar 10:00am -
KT 801

We have impromptu and (sometimes) scheduled talks, on topics in probability, combinatorics, geometry, and dynamics.

Everyone is welcome!