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Arithmetic statistics of families of integer Sn-polynomials and application to class group torsion
IF 0.6 3区 数学 Q3 MATHEMATICS Pub Date : 2024-11-20 DOI: 10.1016/j.jnt.2024.10.009
Ilaria Viglino
We study the distributions of the splitting primes in certain families of number fields. The first and main example is the family Pn,N of polynomials fZ[X] monic of degree n with height less or equal then N, and then let N go to infinity. We prove an average version of the Chebotarev Density Theorem for this family. In particular, this gives a Central Limit Theorem for the number of primes with given splitting type in some ranges. As an application, we deduce some estimates for the -torsion in the class groups and for the average of ramified primes.
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引用次数: 0
Galois actions on Tate modules of Abelian varieties with semi-stable reduction 半稳定约简Abelian变种的Tate模上的伽罗瓦作用
IF 0.6 3区 数学 Q3 MATHEMATICS Pub Date : 2024-11-20 DOI: 10.1016/j.jnt.2024.08.008
Khai-Hoan Nguyen-Dang
Let p be a rational prime number, let K denote a finite extension of Qp, K some fixed algebraic closure of K. Let GK be the absolute Galois group of K and let IKGK be its inertial subgroup. Let A be an Abelian variety defined over K, with semi-stable reduction. In this note, we give a criterion for which Vp(A)IK=0, where Vp(A) is the p-adic Tate module associated to A.
设p是一个有理素数,设K表示Qp的一个有限扩展,K的某个固定代数闭包,设GK是K的绝对伽罗瓦群,设IK≠GK是它的惯性子群。设A是定义在K上的一个阿贝尔变量,具有半稳定约简。本文给出了Vp(a)IK=0的判据,其中Vp(a)是与a相关的p进Tate模。
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引用次数: 0
First order Stickelberger modules over imaginary quadratic fields 虚二次域上的一阶Stickelberger模
IF 0.6 3区 数学 Q3 MATHEMATICS Pub Date : 2024-11-20 DOI: 10.1016/j.jnt.2024.10.005
Saad El Boukhari
Let K/k be a finite abelian extension of number fields of Galois group G with k imaginary quadratic. Let n2 be a rational integer, and for a certain finite set S of places of k, let OK,S be the ring of S-integers of K. We use generalized Stark elements to construct first order Stickelberger modules in odd higher algebraic K-groups of OK,S. We show that the Fitting ideal (resp. index) of these modules inside the corresponding odd K-groups is exactly the Fitting ideal (resp. cardinality) of the even higher algebraic K-group K2n2(OK,S).
设K/ K为伽罗瓦群G具有K个虚二次元的数域的有限阿贝尔扩展。设n≥2为有理整数,且对于k的若干位的有限集合S,设OK,S为k的S-整数环。我们利用广义Stark元在OK,S的奇高代数k群中构造一阶Stickelberger模。我们证明了拟合理想(p。在对应的奇数k群内的这些模块的index)正好是拟合理想(resp。更高代数k群K2n−2(OK,S)的基数)。
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引用次数: 0
Counting wild quartics with prescribed discriminant and Galois closure group 具有规定判别和伽罗瓦闭群的野生四分群计数
IF 0.6 3区 数学 Q3 MATHEMATICS Pub Date : 2024-11-20 DOI: 10.1016/j.jnt.2024.10.008
Sebastian Monnet
Given a 2-adic field K, we give a formula for the number of totally ramified quartic field extensions L/K with a given discriminant valuation and Galois closure group. We use these formulae to prove refinements of Serre's mass formula, which will have applications to the arithmetic statistics of number fields.
给定一个二进域K,在给定判别值和伽罗瓦闭包群的情况下,给出了完全分枝的四进域扩展L/K的个数。我们用这些公式证明了Serre质量公式的改进,它将应用于数域的算术统计。
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引用次数: 0
On Drinfeld modular forms of higher rank VII: Expansions at the boundary 高阶VII的Drinfeld模形式:在边界处的展开式
IF 0.6 3区 数学 Q3 MATHEMATICS Pub Date : 2024-11-20 DOI: 10.1016/j.jnt.2024.09.015
Ernst-Ulrich Gekeler
We study expansions of Drinfeld modular forms of rank r2 along the boundary of moduli varieties. Product formulas for the discriminant forms Δn are developed, which are analogous with Jacobi's formula for the classical elliptic discriminant. The vanishing orders are described through values at s=1r of partial zeta functions of the underlying Drinfeld coefficient ring A. We show linear independence properties for Eisenstein series, which allow to split spaces of modular forms into the subspaces of cusp forms and of Eisenstein series, and give various characterizations of the boundary condition for modular forms.
研究秩r≥2的Drinfeld模形式沿模变体边界的展开式。建立了判别式Δn的乘积公式,与经典椭圆判别式的Jacobi公式类似。通过在s=1−r处的Drinfeld系数环a的偏zeta函数的消失阶来描述。我们证明了爱森斯坦级数的线性无关性,它允许将模形式的空间划分为尖形和爱森斯坦级数的子空间,并给出了模形式的边界条件的各种表征。
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引用次数: 0
An explicit log-free zero density estimate for the Riemann zeta-function 黎曼函数的显式无对数零密度估计
IF 0.6 3区 数学 Q3 MATHEMATICS Pub Date : 2024-11-19 DOI: 10.1016/j.jnt.2024.10.001
Chiara Bellotti
We will provide an explicit log-free zero-density estimate for ζ(s) of the form N(σ,T)ATB(1σ). In particular, this estimate becomes the sharpest known explicit zero-density estimate uniformly for σ[α0,1], with 0.985α00.9927 and 31012<Texp(6.71012).
我们将提供形式为N(σ,T)≤ATB(1−σ)的ζ(s)的显式无对数零密度估计。特别地,对于σ∈[α0,1],当0.985≤α0≤0.9927,且3⋅1012<;T≤exp(6.7⋅1012)时,该估计一致成为已知最尖锐的显式零密度估计。
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引用次数: 0
A conjecture of Merca on nonnegativity of theta series 关于级数非负性的一个猜想
IF 0.6 3区 数学 Q3 MATHEMATICS Pub Date : 2024-11-19 DOI: 10.1016/j.jnt.2024.10.003
Bing He, Shuming Liu
In this paper, we will study a conjecture of Merca on theta series, which gives a refinement of a conjecture of Andrews and Merca on truncated pentagonal number series. We first show refinements of two special cases of Merca's conjecture and then establish several nonnegativity results on theta series. As applications, we establish positivity results involving two celebrated partition statistics.
本文研究了关于theta级数的Merca猜想,给出了截断五边形数级数的Andrews和Merca猜想的一个改进。首先给出了Merca猜想的两种特殊情况的改进,然后建立了级数上的几个非负性结果。作为应用,我们建立了涉及两个著名分区统计量的正性结果。
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引用次数: 0
Bounds for smooth theta sums with rational parameters 光滑有理参数和的边界
IF 0.6 3区 数学 Q3 MATHEMATICS Pub Date : 2024-11-19 DOI: 10.1016/j.jnt.2024.10.002
Francesco Cellarosi , Tariq Osman
We provide explicit families of pairs (α,β)Rk×Rk such that for sufficiently regular f, there is a constant C for which the theta sum bound|nZkf(1Nn)exp{2πi((12n2+βn)x+αn)}|CNk/2, holds for every xR and every NN. Central to the proof is realising that, for fixed N, the theta sum normalised by Nk/2 agrees with an automorphic function Θf evaluated along a special curve known as a horocycle lift. The lift depends on the pair (α,β), and so the bound follows from showing that there are pairs such that |Θf| remains bounded along the entire horocycle lift.
我们提供了对(α,β)∈Rk×Rk的显式族,使得对于足够正则的f,存在一个常数C,使得∑n∈Zkf(1Nn)exp (2πi((12‖n‖2+β⋅n)x+α⋅n)}|≤CNk/2,对每个x∈R和每个n∈n成立。证明的核心是认识到,对于固定的N,由Nk/2归一化的和与一个自同构函数Θf一致,该自同构函数沿着一条称为环提升的特殊曲线计算。升力取决于对(α,β),因此,从显示存在这样的对,|Θf|沿着整个环升力保持有界开始。
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引用次数: 0
Accumulation points of normalized approximations 归一化近似值的累积点
IF 0.6 3区 数学 Q3 MATHEMATICS Pub Date : 2024-11-06 DOI: 10.1016/j.jnt.2024.09.002
Kavita Dhanda, Alan Haynes
Building on classical aspects of the theory of Diophantine approximation, we consider the collection of all accumulation points of normalized integer vector translates of points qα with αRd and qZ. In the first part of the paper we derive measure theoretic and Hausdorff dimension results about the set of α whose accumulation points are all of Rd. In the second part we focus primarily on the case when the coordinates of α together with 1 form a basis for an algebraic number field K. Here we show that, under the correct normalization, the set of accumulation points displays an ordered geometric structure which reflects algebraic properties of the underlying number field. For example, when d=2, this collection of accumulation points can be described as a countable union of dilates (by norms of elements of an order in K) of a single ellipse, or of a pair of hyperbolas, depending on whether or not K has a non-trivial embedding into C.
以二阶近似理论的经典方面为基础,我们考虑了具有 α∈Rd 和 q∈Z 的点 qα 的归一化整数向量平移的所有堆积点的集合。在论文的第一部分,我们推导了关于积点都是 Rd 的 α 集合的度量论和豪斯多夫维度结果。在第二部分中,我们主要关注当 α 的坐标与 1 一起构成代数数域 K 的基础时的情况。我们在此证明,在正确的归一化条件下,累积点集合显示出有序的几何结构,它反映了基础数域的代数特性。例如,当 d=2 时,这个积点集合可以被描述为一个椭圆或一对双曲线的扩张(通过 K 中一个阶元素的规范)的可数联合,这取决于 K 是否有一个非三维嵌入到 C 中。
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引用次数: 0
On the Diophantine equation 2s + pk = m2 with a Fermat prime p 关于 2s + pk = m2 与费马素数 p 的二元一次方程
IF 0.6 3区 数学 Q3 MATHEMATICS Pub Date : 2024-11-05 DOI: 10.1016/j.jnt.2024.09.006
Florian Luca , István Pink
In this paper, we find all the solutions of the Diophantine equation from the title.
在本文中,我们将从题目中找出 Diophantine 方程的所有解。
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引用次数: 0
期刊
Journal of Number Theory
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