Distribution of modular symbols: (joint with M. S. Risager)
Speaker:
Yiannis Petridis, City University of New York
Date and Time:
Wednesday, May 7, 2003 - 2:00pm to 3:00pm
Location:
Fields Institute, Room 230
Abstract:
The modular symbols are defined as $\langle \gamma, f\rangle=-2\pi i \int_{a}^{\gamma a }f(\tau )\d\tau,$ where $f(\tau )$ is a holomorphic cusp form of weight $2$ for $\Gamma $ and $\gamma\in \Gamma$. We prove that on a surface with cusps the modular symbols appropriately normalized and ordered according to $c^2+d^2$, where $(c, d)$ is the second row of $\gamma$ have a binormal
distribution in the complex plane with correlation coefficient $0$. We examine various possible generalisations.