Denominators of the Weierstrass coefficients of the canonical lifting

组织者 Organizer:Delong Li (University of Tenne
时间 Time: 周五, 2021-01-08 20:00-21:00
地点 Venue:腾讯会议ID:339 627 402

简介 Description

Given an ordinary elliptic curve, the Weierstrass coefficients of its canonical lifting a, b can be given by explicit formulas. We study the coordinates of these a, b. We show that the denominators have only three possible factors, and we give an upper bound for the power of each factor. We also study the universal property of these formulas.