Explicit Two-Cover Descent for Genus 2 Curves
Speaker:
Daniel Hast, Boston University
Date and Time:
Thursday, July 7, 2022 - 11:00am to 11:20am
Location:
Fields Institute, Room 230
Abstract:
A central problem in arithmetic geometry is to find a general procedure that provably computes the (finite) set of rational points on a curve of general type over a number field; this is an open problem even for genus 2 curves over the rational numbers. We will survey how a combination of descent constructions and the p-adic analytic method of Chabauty and Coleman can be used to carry out this computation in many cases, and discuss an application of this approach to a large dataset of genus 2 quintic curves. Along the way, we will see a connection to the classical geometry of Kummer surfaces.