Fan-Yun Hung

collaborators

2 papers

math.NT2023

Class numbers of multinorm-one tori

Fan-Yun Hung, Chia-Fu Yu

We present a formula for the class number of a multinorm one torus $T_{L / k}$ associated to any étale algebra $L$ over a global field $k$ . This is deduced from a formula for analogu…

math.NT2022

Computing Tate-Shafarevich groups of multinorm one tori of Kummer type

Jun-Hao Huang, Fan-Yun Hung, Pei-Xin Liang +1

A multinorm one torus associated to a commutative étale algebra $L$ over a global field $k$ is of Kummer type if each factor of $L$ is a cyclic Kummer extension. In this paper we c…