Arithmetic of the Legendre curve

Series
Algebra Seminar
Time
Monday, March 7, 2011 - 3:00pm for 1 hour (actually 50 minutes)
Location
Skiles 005
Speaker
Doug Ulmer – Georgia Tech
Organizer
Matt Baker
Let k be a field (not of characteristic 2) and let t be an indeterminate. Legendre's elliptic curve is the elliptic curve over k(t) defined by y^2=x(x-1)(x-t). I will discuss the arithmetic of this curve (group of solutions, heights, Tate-Shafarevich group) over the extension fields k(t^{1/d}). I will also mention several variants and open problems which would make good thesis topics.