Computing Tate-Shafarevich groups of multinorm one tori of Kummer type
Number Theory
2022-11-22 v1
Abstract
A multinorm one torus associated to a commutative \'etale algebra over a global field is of Kummer type if each factor of is a cyclic Kummer extension. In this paper we compute the Tate-Shafarevich group of such tori based on recent works of Bayer-Fluckiger, T.-Y. Lee and Parimala, and of T.-Y.~Lee. We also implement an effective algorithm using SAGE which computes the Tate-Shafarevich groups when each factor of is contained in a fixed concrete bicyclic extension of .
Keywords
Cite
@article{arxiv.2211.11249,
title = {Computing Tate-Shafarevich groups of multinorm one tori of Kummer type},
author = {Jun-Hao Huang and Fan-Yun Hung and Pei-Xin Liang and Chia-Fu Yu},
journal= {arXiv preprint arXiv:2211.11249},
year = {2022}
}
Comments
17 pages, 3 figures, comments are welcome