Seminar at SMU Delhi

November 20, 2019 (Wednesday) , 3:30 PM at Webinar
Speaker: Filip Najman, University of Zagreb, Croatia
Title: Growth of torsion groups of elliptic curves upon base change
Abstract of Talk
We study how the torsion of elliptic curves over number fields grows upon base change, and in particular prove various necessary conditions for torsion growth. In particular, we prove that E(K)_{tors}=E(Q)_{tors} for all elliptic curves E defined over Q and all number fields K of degree d, where d is not divisible by a prime greater or equal to 7. This is joint work with Enrique Gonzalez-Jimenez.