##### Department of Mathematics,

University of California San Diego

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### Math 211B - Group Actions Seminar

## Samantha Fairchild

#### Max Planck Institute

## Shrinking rates of horizontal gaps for generic translation surfaces

##### Abstract:

** **A translation surface is given by polygons in the plane, with sides identified by translations to create a closed Riemann surface with a flat structure away from finitely many singular points. Understanding geodesic flow on a surface involves understanding saddle connections. Saddle connections are the geodesics starting and ending at these singular points and are associated to a discrete subset of the plane. To measure the behavior of saddle connections of length at most $R$, we obtain precise decay rates as $R$ goes to infinity for the difference in angle between two almost horizontal saddle connections. This is based on joint work with Jon Chaika.

Host: Brandon Seward

### January 26, 2023

### 10:00 AM

Zoom ID 967 4109 3409

Email an organizer for the password

Research Areas

Ergodic Theory and Dynamical Systems****************************