Algebra and Number Theory Seminar: Robert Pollack

University of Arizona Department of Mathematics

When

2 – 3 p.m., Sept. 10, 2024

Where

Title: On the distribution of L-invariants of modular forms
 
Abstract: The distribution of invariants of modular forms has been studied in many contexts.  The Sato-Tate conjecture makes a precise prediction on the distribution of normalized Hecke-eigenvalues for modular forms.  Here one fixes a form and varies the eigenvalue.  One could also fix the eigenvalue and vary the form and still this invariant has a beautifully predictable distribution.

In this talk, we will discuss p-adic variants of these questions and investigate the distribution of the p-adic size of Hecke-eigenvalues leading to Gouvea's conjecture.  Further, we will study a more mysterious p-adic invariant of a modular form, namely the L-invariant.  We will give an overview of this invariant and ultimately state a conjecture about its p-adic distribution.  This work is joint with John Bergdall.