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Common values of linear recurrences related to Shank's simplest cubics 与尚克最简单立方体有关的线性递归的常见值
IF 0.6 3区 数学 Q3 MATHEMATICS Pub Date : 2024-09-23 DOI: 10.1016/j.jnt.2024.09.001
Let A,B,CZ not all zeroes and let F(u,n)=F(A,B,C,u,n) be the linear recursive sequence, which is defined by the initial terms F(u,0)=A,F(u,1)=B,F(u,2)=C and whose characteristic polynomial is Daniel Shanks simplest cubic Su(X)=X3(u1)X2(u+2)X1,uZ. We prove that there exists an effectively computable constant c depending only on L=max{|A|,|B|,|C|} such that if |F(A,B,C,u,n)|=|F(A,B,C,u,m)| holds for some integers u,n,m with nm then |n|,|m|<c. For the choices (A,B,C){(0,0,1),(1,1,1)} we solve the above equations completely. At the end we give an outlook to the equation F(0,0,1,u,n)=F(0,0,1,v,m) for some fixed integers n,m.
设 A,B,C∈Z 不全为零,并设 F(u,n)=F(A,B,C,u,n) 为线性递推序列,该序列由初始项 F(u,0)=A,F(u,1)=B,F(u,2)=C 定义,其特征多项式为丹尼尔-香克斯最简立方 Su(X)=X3-(u-1)X2-(u+2)X-1,u∈Z。我们证明存在一个有效的可计算常数 c,它只取决于 L=max{|A|,|B|,|C|},这样,如果|F(A,B,C,u,n)|=|F(A,B,C,u,m)|对某些整数 u,n,m 成立,且 n≠m,那么|n|,|m|<c。对于(A,B,C)∈{(0,0,1),(1,-1,1)}的选择,我们可以完全解出上述方程。最后,我们给出了对一些固定整数 n,m 的方程 F(0,0,1,u,n)=F(0,0,1,v,m) 的展望。
{"title":"Common values of linear recurrences related to Shank's simplest cubics","authors":"","doi":"10.1016/j.jnt.2024.09.001","DOIUrl":"10.1016/j.jnt.2024.09.001","url":null,"abstract":"<div><div>Let <span><math><mi>A</mi><mo>,</mo><mi>B</mi><mo>,</mo><mi>C</mi><mo>∈</mo><mi>Z</mi></math></span> not all zeroes and let <span><math><mi>F</mi><mo>(</mo><mi>u</mi><mo>,</mo><mi>n</mi><mo>)</mo><mo>=</mo><mi>F</mi><mo>(</mo><mi>A</mi><mo>,</mo><mi>B</mi><mo>,</mo><mi>C</mi><mo>,</mo><mi>u</mi><mo>,</mo><mi>n</mi><mo>)</mo></math></span> be the linear recursive sequence, which is defined by the initial terms <span><math><mi>F</mi><mo>(</mo><mi>u</mi><mo>,</mo><mn>0</mn><mo>)</mo><mo>=</mo><mi>A</mi><mo>,</mo><mi>F</mi><mo>(</mo><mi>u</mi><mo>,</mo><mn>1</mn><mo>)</mo><mo>=</mo><mi>B</mi><mo>,</mo><mi>F</mi><mo>(</mo><mi>u</mi><mo>,</mo><mn>2</mn><mo>)</mo><mo>=</mo><mi>C</mi></math></span> and whose characteristic polynomial is Daniel Shanks simplest cubic <span><math><msub><mrow><mi>S</mi></mrow><mrow><mi>u</mi></mrow></msub><mo>(</mo><mi>X</mi><mo>)</mo><mo>=</mo><msup><mrow><mi>X</mi></mrow><mrow><mn>3</mn></mrow></msup><mo>−</mo><mo>(</mo><mi>u</mi><mo>−</mo><mn>1</mn><mo>)</mo><msup><mrow><mi>X</mi></mrow><mrow><mn>2</mn></mrow></msup><mo>−</mo><mo>(</mo><mi>u</mi><mo>+</mo><mn>2</mn><mo>)</mo><mi>X</mi><mo>−</mo><mn>1</mn><mo>,</mo><mi>u</mi><mo>∈</mo><mi>Z</mi></math></span>. We prove that there exists an effectively computable constant <em>c</em> depending only on <span><math><mi>L</mi><mo>=</mo><mi>max</mi><mo>⁡</mo><mo>{</mo><mo>|</mo><mi>A</mi><mo>|</mo><mo>,</mo><mo>|</mo><mi>B</mi><mo>|</mo><mo>,</mo><mo>|</mo><mi>C</mi><mo>|</mo><mo>}</mo></math></span> such that if <span><math><mo>|</mo><mi>F</mi><mo>(</mo><mi>A</mi><mo>,</mo><mi>B</mi><mo>,</mo><mi>C</mi><mo>,</mo><mi>u</mi><mo>,</mo><mi>n</mi><mo>)</mo><mo>|</mo><mo>=</mo><mo>|</mo><mi>F</mi><mo>(</mo><mi>A</mi><mo>,</mo><mi>B</mi><mo>,</mo><mi>C</mi><mo>,</mo><mi>u</mi><mo>,</mo><mi>m</mi><mo>)</mo><mo>|</mo></math></span> holds for some integers <span><math><mi>u</mi><mo>,</mo><mi>n</mi><mo>,</mo><mi>m</mi></math></span> with <span><math><mi>n</mi><mo>≠</mo><mi>m</mi></math></span> then <span><math><mo>|</mo><mi>n</mi><mo>|</mo><mo>,</mo><mo>|</mo><mi>m</mi><mo>|</mo><mo>&lt;</mo><mi>c</mi></math></span>. For the choices <span><math><mo>(</mo><mi>A</mi><mo>,</mo><mi>B</mi><mo>,</mo><mi>C</mi><mo>)</mo><mo>∈</mo><mo>{</mo><mo>(</mo><mn>0</mn><mo>,</mo><mn>0</mn><mo>,</mo><mn>1</mn><mo>)</mo><mo>,</mo><mo>(</mo><mn>1</mn><mo>,</mo><mo>−</mo><mn>1</mn><mo>,</mo><mn>1</mn><mo>)</mo><mo>}</mo></math></span> we solve the above equations completely. At the end we give an outlook to the equation <span><math><mi>F</mi><mo>(</mo><mn>0</mn><mo>,</mo><mn>0</mn><mo>,</mo><mn>1</mn><mo>,</mo><mi>u</mi><mo>,</mo><mi>n</mi><mo>)</mo><mo>=</mo><mi>F</mi><mo>(</mo><mn>0</mn><mo>,</mo><mn>0</mn><mo>,</mo><mn>1</mn><mo>,</mo><mi>v</mi><mo>,</mo><mi>m</mi><mo>)</mo></math></span> for some fixed integers <span><math><mi>n</mi><mo>,</mo><mi>m</mi></math></span>.</div></div>","PeriodicalId":50110,"journal":{"name":"Journal of Number Theory","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142328260","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Maximally elastic quadratic fields 最大弹性二次场
IF 0.6 3区 数学 Q3 MATHEMATICS Pub Date : 2024-09-23 DOI: 10.1016/j.jnt.2024.08.003
Recall that for a domain R where every nonzero nonunit factors into irreducibles, the elasticity of R is defined assup{sr:π1πr=ρ1ρs, with all πi,ρj irreducible}. We call a quadratic field K maximally elastic if the ring of integers of K is a UFD and each element of {1,32,2,52,3,}{} appears as an elasticity of infinitely many orders inside K. This corresponds to the orders in K exhibiting, to the extent possible for a quadratic field, maximal variation in terms of the failure of unique factorization. Assuming the Generalized Riemann Hypothesis, we prove that K=Q(2) is universally elastic, and we provide evidence for a conjectured characterization of maximally elastic quadratic fields.
回想一下,对于每个非零非单元都因数化为不可还原单元的域 R,R 的弹性定义如下{sr:π1⋯πr=ρ1⋯ρs,所有 πi,ρj 都不可还原}。如果 K 的整数环是 UFD,且{1,32,2,52,3,...}∪{∞}中的每个元素在 K 中作为无穷多阶的弹性出现,我们就称一个二次域 K 为最大弹性域。假设广义黎曼假说成立,我们证明 K=Q(2) 具有普遍弹性,并为最大弹性二次域的猜想特征提供证据。
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引用次数: 0
On the number of prime factors with a given multiplicity over h-free and h-full numbers 关于在无h和满h数中具有给定倍数的质因数个数
IF 0.6 3区 数学 Q3 MATHEMATICS Pub Date : 2024-09-23 DOI: 10.1016/j.jnt.2024.08.007
Let k and n be natural numbers. Let ωk(n) denote the number of distinct prime factors of n with multiplicity k as studied by Elma and the third author [5]. We obtain asymptotic estimates for the first and the second moments of ωk(n) when restricted to the set of h-free and h-full numbers. We prove that ω1(n) has normal order loglogn over h-free numbers, ωh(n) has normal order loglogn over h-full numbers, and both of them satisfy the Erdős-Kac Theorem. Finally, we prove that the functions ωk(n) with 1<k<h do not have normal order over h-free numbers and ωk(n) with k>h do not have normal order over h-full numbers.
设 k 和 n 都是自然数。让 ωk(n)表示乘数为 k 的 n 的不同质因数的个数,如 Elma 和第三作者所研究的那样[5]。我们得到了ωk(n)的第一矩和第二矩的渐近估计值,并将其限制在无 h 和满 h 的数集合中。我们证明ω1(n) 在 h 个无穷数上有正序 loglogn,ωh(n) 在 h 个满数上有正序 loglogn,而且它们都满足厄尔多斯-卡克定理。最后,我们证明含 1<k<h 的函数 ωk(n) 在无 h 数上没有正序,含 k>h 的函数 ωk(n) 在满 h 数上没有正序。
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引用次数: 0
The characteristic cycle of a non-confluent ℓ-adic GKZ hypergeometric sheaf 非充填ℓ-adic GKZ 超几何层的特征周期
IF 0.6 3区 数学 Q3 MATHEMATICS Pub Date : 2024-09-23 DOI: 10.1016/j.jnt.2024.07.014
An -adic GKZ hypergeometric sheaf is defined analogously to a GKZ hypergeometric D-module. We introduce an algorithm of computing the characteristic cycle of an -adic GKZ hypergeometric sheaf of certain type. Our strategy is to apply a formula of the characteristic cycle of the direct image of an -adic sheaf. We verify the requirements for the formula to hold by calculating the dimension of the direct image of a certain closed conical subset of cotangent bundle. We also define an -adic GKZ-type sheaf whose specialization tensored with a constant sheaf is isomorphic to an -adic non-confluent GKZ hypergeometric sheaf. On the other hand, the topological model of an -adic GKZ-type sheaf is isomorphic to the image by the de Rham functor of a non-confluent GKZ hypergeometric D-module whose characteristic cycle has been calculated. This gives an easier way to determine the characteristic cycle of an -adic non-confluent GKZ hypergeometric sheaf of certain type.
一个 ℓ-adic GKZ 超几何 Sheaf 的定义类似于一个 GKZ 超几何 D 模块。我们介绍一种计算特定类型的 ℓ-adic GKZ 超几何 sheaf 的特征周期的算法。我们的策略是应用 ℓ-adic Sheaf 的直像的特征周期公式。我们通过计算共切束的某个封闭圆锥子集的直像维度来验证公式成立的要求。我们还定义了一个 ℓ-adic GKZ 型 Sheaf,它的特化张开与一个常量 Sheaf 同构。另一方面,ℓ-adic GKZ 型 Sheaf 的拓扑模型与已计算出其特征周期的非相容 GKZ 超几何 D 模块的 de Rham 函数的图像同构。这提供了一种更简便的方法来确定特定类型的 ℓ-adic 非共轭 GKZ 超几何 sheaf 的特征周期。
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引用次数: 0
On the Selmer group and rank of a family of elliptic curves and curves of genus one violating the Hasse principle 论违反哈塞原理的椭圆曲线和一属曲线族的塞尔默群和秩
IF 0.6 3区 数学 Q3 MATHEMATICS Pub Date : 2024-09-23 DOI: 10.1016/j.jnt.2024.08.001
We study an infinite family of j-invariant zero elliptic curves ED:y2=x3+16D and their λ-isogenous curves ED:y2=x32716D, where D and D=3D are fundamental discriminants of a specific form, and λ is an isogeny of degree 3. A result of Honda guarantees that for our discriminants D, the quadratic number field KD=Q(D) always has non-trivial 3-class group. We prove a series of results related to the set of rational points ED(Q)λ(ED(Q)), and the SL(2,Z)-equivalence classes of irreducible integral binary cubic forms of discriminant D. By assuming finiteness of the Tate-Shafarevich group, we derive a parity result between the rank of ED and the rank of its 3-Selmer group, and we establish lower and upper bounds for the rank of our elliptic curves. Finally, we give explicit classes of genus-1 curves that correspond to irreducible integral binary cubic forms of discriminant D=48035713, and we show that every curve in these classes violates the Hasse Principle.
我们研究了 j-invariant 零椭圆曲线 ED:y2=x3+16D 及其 λ-isogenous 曲线 ED′:y2=x3-27⋅16D,其中 D 和 D′=-3D 是特定形式的基本判别式,λ 是阶数为 3 的等元。本田的一个结果保证,对于我们的判别式 D,二次数域 KD=Q(D) 总是具有非三阶群。我们证明了一系列与有理点集 ED′(Q)∖λ(ED(Q))和判别式 D 的不可还原积分二元三次方形式的 SL(2,Z) 等价类有关的结果。通过假定 Tate-Shafarevich 群的有限性,我们推导出 ED 的秩与其 3-Selmer 群的秩之间的奇偶性结果,并建立了椭圆曲线秩的下限和上限。最后,我们给出了与判别式 D=48035713 的不可还原积分二元三次方形式相对应的明确的属-1 曲线类,并证明了这些类中的每条曲线都违反了哈塞原理。
{"title":"On the Selmer group and rank of a family of elliptic curves and curves of genus one violating the Hasse principle","authors":"","doi":"10.1016/j.jnt.2024.08.001","DOIUrl":"10.1016/j.jnt.2024.08.001","url":null,"abstract":"<div><div>We study an infinite family of <em>j</em>-invariant zero elliptic curves <span><math><msub><mrow><mi>E</mi></mrow><mrow><mi>D</mi></mrow></msub><mo>:</mo><msup><mrow><mi>y</mi></mrow><mrow><mn>2</mn></mrow></msup><mo>=</mo><msup><mrow><mi>x</mi></mrow><mrow><mn>3</mn></mrow></msup><mo>+</mo><mn>16</mn><mi>D</mi></math></span> and their <em>λ</em>-isogenous curves <span><math><msub><mrow><mi>E</mi></mrow><mrow><msup><mrow><mi>D</mi></mrow><mrow><mo>′</mo></mrow></msup></mrow></msub><mo>:</mo><msup><mrow><mi>y</mi></mrow><mrow><mn>2</mn></mrow></msup><mo>=</mo><msup><mrow><mi>x</mi></mrow><mrow><mn>3</mn></mrow></msup><mo>−</mo><mn>27</mn><mo>⋅</mo><mn>16</mn><mi>D</mi></math></span>, where <em>D</em> and <span><math><msup><mrow><mi>D</mi></mrow><mrow><mo>′</mo></mrow></msup><mo>=</mo><mo>−</mo><mn>3</mn><mi>D</mi></math></span> are fundamental discriminants of a specific form, and <em>λ</em> is an isogeny of degree 3. A result of Honda guarantees that for our discriminants <em>D</em>, the quadratic number field <span><math><msub><mrow><mi>K</mi></mrow><mrow><mi>D</mi></mrow></msub><mo>=</mo><mi>Q</mi><mo>(</mo><msqrt><mrow><mi>D</mi></mrow></msqrt><mo>)</mo></math></span> always has non-trivial 3-class group. We prove a series of results related to the set of rational points <span><math><msub><mrow><mi>E</mi></mrow><mrow><msup><mrow><mi>D</mi></mrow><mrow><mo>′</mo></mrow></msup></mrow></msub><mo>(</mo><mi>Q</mi><mo>)</mo><mo>∖</mo><mi>λ</mi><mo>(</mo><msub><mrow><mi>E</mi></mrow><mrow><mi>D</mi></mrow></msub><mo>(</mo><mi>Q</mi><mo>)</mo><mo>)</mo></math></span>, and the <span><math><mi>S</mi><mi>L</mi><mo>(</mo><mn>2</mn><mo>,</mo><mi>Z</mi><mo>)</mo></math></span>-equivalence classes of irreducible integral binary cubic forms of discriminant <em>D</em>. By assuming finiteness of the Tate-Shafarevich group, we derive a parity result between the rank of <span><math><msub><mrow><mi>E</mi></mrow><mrow><mi>D</mi></mrow></msub></math></span> and the rank of its 3-Selmer group, and we establish lower and upper bounds for the rank of our elliptic curves. Finally, we give explicit classes of genus-1 curves that correspond to irreducible integral binary cubic forms of discriminant <span><math><mi>D</mi><mo>=</mo><mn>48035713</mn></math></span>, and we show that every curve in these classes violates the Hasse Principle.</div></div>","PeriodicalId":50110,"journal":{"name":"Journal of Number Theory","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142328257","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Recurrence formulae for spectral determinants 光谱行列式的递推公式
IF 0.6 3区 数学 Q3 MATHEMATICS Pub Date : 2024-09-20 DOI: 10.1016/j.jnt.2024.08.004
We develop a unified method to study spectral determinants for several different manifolds, including spheres and hemispheres, and projective spaces. This is a direct consequence of an approach based on deriving recursion relations for the corresponding zeta functions, which we are then able to solve explicitly. Apart from new applications such as hemispheres, we also believe that the resulting formulae in the cases for which expressions for the determinant were already known are simpler and easier to compute in general, when compared to those resulting from other approaches.
我们开发了一种统一的方法来研究几种不同流形(包括球面和半球面以及投影空间)的谱行列式。这是基于推导相应zeta函数递推关系的方法的直接结果,然后我们就能明确地求解这些递推关系。除了半球等新应用之外,我们还认为,在行列式表达式已经已知的情况下,与其他方法得出的公式相比,我们得出的公式更简单,更易于计算。
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引用次数: 0
Integral points on moduli schemes 模态方案上的积分点
IF 0.7 3区 数学 Q3 MATHEMATICS Pub Date : 2024-08-30 DOI: 10.1016/j.jnt.2024.07.005
Rafael von Känel
The strategy of combining the method of Faltings (Arakelov, Paršin, Szpiro) with modularity and Masser–Wüstholz isogeny estimates allows to explicitly bound the height and the number of the solutions of certain Diophantine equations related to integral points on moduli schemes of abelian varieties. In this paper we survey the development and various applications of this strategy.
将法尔廷斯方法(Arakelov, Paršin, Szpiro)与模块性和马塞尔-伍斯特霍尔茨同源估计相结合的策略,可以明确约束与无常变体模态上积分点有关的某些二叉方程的解的高度和数目。在本文中,我们将考察这一策略的发展和各种应用。
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引用次数: 0
Greedy Sidon sets for linear forms 线性形式的贪婪西顿集
IF 0.6 3区 数学 Q3 MATHEMATICS Pub Date : 2024-08-22 DOI: 10.1016/j.jnt.2024.07.010

The greedy Sidon set, also known as the Mian-Chowla sequence, is the lexicographically first set in N that does not contain x1,x2,y1,y2 with x1+x2=y1+y2. Its growth and structure have remained enigmatic for 80 years. In this work, we study a generalization from the form x1+x2 to arbitrary linear forms c1x1++chxh; these are called Sidon sets for linear forms. We explicitly describe the elements of the greedy Sidon sets for linear forms when ci=ni1 for some n2, and also when h=2,c1=2,c24, the “structured” domain. We also contrast the “enigmatic” domain when h=2,c1=2,c2=3 with the “structured” domain, and give upper bounds on the growth rates in both cases.

贪婪西顿集合,又称米安-乔拉序列,是 N 中不包含 x1、x2、y1、y2 且 x1+x2=y1+y2 的词序第一集合。80 年来,它的成长和结构一直是个谜。在这项工作中,我们研究了从 x1+x2 形式到任意线性形式 c1x1+...+chxh 的广义化;这些形式被称为线性形式的西顿集。我们明确描述了线性形式的贪婪西顿集的元素,当某些 n≥2 时,ci=ni-1,以及当 h=2,c1=2,c2≥4 时,即 "结构化 "域。我们还将 h=2,c1=2,c2=3 时的 "神秘 "域与 "结构化 "域进行了对比,并给出了两种情况下的增长率上限。
{"title":"Greedy Sidon sets for linear forms","authors":"","doi":"10.1016/j.jnt.2024.07.010","DOIUrl":"10.1016/j.jnt.2024.07.010","url":null,"abstract":"<div><p>The greedy Sidon set, also known as the Mian-Chowla sequence, is the lexicographically first set in <span><math><mi>N</mi></math></span> that does not contain <span><math><msub><mrow><mi>x</mi></mrow><mrow><mn>1</mn></mrow></msub><mo>,</mo><msub><mrow><mi>x</mi></mrow><mrow><mn>2</mn></mrow></msub><mo>,</mo><msub><mrow><mi>y</mi></mrow><mrow><mn>1</mn></mrow></msub><mo>,</mo><msub><mrow><mi>y</mi></mrow><mrow><mn>2</mn></mrow></msub></math></span> with <span><math><msub><mrow><mi>x</mi></mrow><mrow><mn>1</mn></mrow></msub><mo>+</mo><msub><mrow><mi>x</mi></mrow><mrow><mn>2</mn></mrow></msub><mo>=</mo><msub><mrow><mi>y</mi></mrow><mrow><mn>1</mn></mrow></msub><mo>+</mo><msub><mrow><mi>y</mi></mrow><mrow><mn>2</mn></mrow></msub></math></span>. Its growth and structure have remained enigmatic for 80 years. In this work, we study a generalization from the form <span><math><msub><mrow><mi>x</mi></mrow><mrow><mn>1</mn></mrow></msub><mo>+</mo><msub><mrow><mi>x</mi></mrow><mrow><mn>2</mn></mrow></msub></math></span> to arbitrary linear forms <span><math><msub><mrow><mi>c</mi></mrow><mrow><mn>1</mn></mrow></msub><msub><mrow><mi>x</mi></mrow><mrow><mn>1</mn></mrow></msub><mo>+</mo><mo>…</mo><mo>+</mo><msub><mrow><mi>c</mi></mrow><mrow><mi>h</mi></mrow></msub><msub><mrow><mi>x</mi></mrow><mrow><mi>h</mi></mrow></msub></math></span>; these are called Sidon sets for linear forms. We explicitly describe the elements of the greedy Sidon sets for linear forms when <span><math><msub><mrow><mi>c</mi></mrow><mrow><mi>i</mi></mrow></msub><mo>=</mo><msup><mrow><mi>n</mi></mrow><mrow><mi>i</mi><mo>−</mo><mn>1</mn></mrow></msup></math></span> for some <span><math><mi>n</mi><mo>≥</mo><mn>2</mn></math></span>, and also when <span><math><mi>h</mi><mo>=</mo><mn>2</mn><mo>,</mo><msub><mrow><mi>c</mi></mrow><mrow><mn>1</mn></mrow></msub><mo>=</mo><mn>2</mn><mo>,</mo><msub><mrow><mi>c</mi></mrow><mrow><mn>2</mn></mrow></msub><mo>≥</mo><mn>4</mn></math></span>, the “structured” domain. We also contrast the “enigmatic” domain when <span><math><mi>h</mi><mo>=</mo><mn>2</mn><mo>,</mo><msub><mrow><mi>c</mi></mrow><mrow><mn>1</mn></mrow></msub><mo>=</mo><mn>2</mn><mo>,</mo><msub><mrow><mi>c</mi></mrow><mrow><mn>2</mn></mrow></msub><mo>=</mo><mn>3</mn></math></span> with the “structured” domain, and give upper bounds on the growth rates in both cases.</p></div>","PeriodicalId":50110,"journal":{"name":"Journal of Number Theory","volume":null,"pages":null},"PeriodicalIF":0.6,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S0022314X24001768/pdfft?md5=530dddb3b9f53a0f7a336819d6924b12&pid=1-s2.0-S0022314X24001768-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142097369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Lower bounds for linear forms in two p-adic logarithms 两个 p-adic 对数中线性形式的下界
IF 0.6 3区 数学 Q3 MATHEMATICS Pub Date : 2024-08-21 DOI: 10.1016/j.jnt.2024.07.012

We prove explicit lower bounds for linear forms in two p-adic logarithms. More specifically, we establish explicit lower bounds for the p-adic distance between two integral powers of algebraic numbers, that is, |Λ|p=|α1b1α2b2|p (and corresponding explicit upper bounds for vp(Λ)), where α1,α2 are numbers that are algebraic over Q and b1,b2 are positive rational integers.

This work is a p-adic analogue of Gouillon's explicit lower bounds in the complex case. Our upper bound for vp(Λ) has an explicit constant of reasonable size and the dependence of the bound on B (a quantity depending on b1 and b2) is logB, instead of (logB)2 as in the work of Bugeaud and Laurent in 1996.

我们证明了两个 p-adic 对数中线性形式的显式下界。更具体地说,我们建立了两个代数数积分幂之间的 p-adic 距离的显式下界,即 |Λ|p=|α1b1-α2b2|p(以及 vp(Λ) 的相应显式上界),其中 α1,α2是 Q 上的代数数,b1,b2 是正有理整数。我们的 vp(Λ) 上限有一个合理大小的显式常数,而且上限与 B(取决于 b1 和 b2 的一个量)的关系是 logB,而不是 Bugeaud 和 Laurent 在 1996 年的研究中的 (logB)2。
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引用次数: 0
Subconvexity of twisted Shintani zeta functions 扭曲新谷 zeta 函数的次凸性
IF 0.6 3区 数学 Q3 MATHEMATICS Pub Date : 2024-08-20 DOI: 10.1016/j.jnt.2024.07.008

Previously the authors proved subconvexity of Shintani's zeta function enumerating class numbers of binary cubic forms. Here we return to prove subconvexity of the Maass form twisted version. The method demonstrated here has applications to the subconvexity of some of the twisted zeta functions introduced by F. Sato. The argument demonstrates that the symmetric space condition used by Sato is not necessary to estimate the zeta function in the critical strip.

在此之前,作者证明了枚举二元三次方形式类数的新谷 zeta 函数的次凸性。在此,我们再次证明马斯形式扭曲版本的次凸性。这里演示的方法可应用于佐藤 F. 提出的一些扭曲zeta函数的次凸性。这一论证表明,佐藤所使用的对称空间条件对于估计临界带中的zeta函数并非必要。
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引用次数: 0
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Journal of Number Theory
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