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Denominators of the Weierstrass coefficients of the canonical lifting
开始时间: 0
结束时间: 0
排课时间:
Organizer:
Delong Li (University of Tenne
Time:
周五, 2021-01-08 20:00-21:00
Venue:
腾讯会议ID:339 627 402
Abstract
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.