A Database of Local Fields

A database of number fields

We describe an online database of number fields which accompanies this paper The database centers on complete lists of number fields with prescribed invariants. Our description here focuses on summarizing tables and connections to theoretical issues of current interest.

A database for field extensions of the rationals

We report on a database of field extensions of the rationals, its properties and the methods used to compute it. At the moment the database encompasses roughly 100,000 polynomials generating distinct number fields over the rationals, of degrees up to 15. It contains polynomials for all transitive permutation groups up to that degree, and even for most of the possible combinations of signature and Galois group in that range. Moreover, whenever these are known, the fields of minimal discriminant with given group and signature have been included. The database can be downloaded from www.iwr.uni-he…

A database of Hilbert modular forms

We describe the computation of tables of Hilbert modular forms of parallel weight 2 over totally real fields.

寻找用于计算局部不变量的伽罗瓦分裂模型

Finding Galois splitting models to compute local invariants

本研究利用伽罗瓦分裂模型思想计算合次数分歧扩张的相关伽罗瓦不变量，补充了Jones和Roberts建立的p进扩张不变量数据库，并提出了含泛多项式与Panayi根查找算法的多种找伽罗瓦分裂模型的策略。