Cristian D. Gonzalez-Aviles
In this paper we obtain a Poitou-Tate exact sequence for finite and flat group schemes over a global function field. We also extend the duality theorems for 1-motives over number fields obtained by D.Harari and T.Szamuely to the function field case.
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We prove several duality theorems for the Galois and etale cohomology of 1-motives defined over local and global fields and establish a 12-term Poitou-Tate type exact sequence. The results give a common generalisation and sharpening of well-known theorems by Tate on abelian varieties as well as results by Tate/Nakayama and Kottwitz on algebraic tori.
Let $M$ be a T-motive. We introduce the notion of duality for $M$. Main results of the paper (we consider uniformizable $M$ over $F_q[T]$ of rank $r$, dimension $n$, whose nilpotent operator $N$ is 0): 1. Algebraic duality implies analytic duality (Theorem 5). Explicitly, this means that the lattice of the dual of $M$ is the dual of the lattice of $M$, i.e. the transposed of a Siegel matrix of $M$ is a Siegel matrix of the dual of $M$. 2. Let $n=r-1$. There is a 1 -- 1 correspondence between pure T-motives (all they are uniformizable), and lattices of rank $r$ in $C^n$ having dual (Corollary 8…
We develop a theory of Tannakian Galois groups for t-motives and relate this to the theory of Frobenius semilinear difference equations. We show that the transcendence degree of the period matrix associated to a given t-motive is equal to the dimension of its Galois group. Using this result we prove that Carlitz logarithms of algebraic functions that are linearly independent over the rational function field are algebraically independent.
In this paper, we propose a definition of Neron models of arbitrary Deligne 1-motives over Dedekind schemes, extending Neron models of semi-abelian varieties. The key property of our Neron models is that they satisfy a generalization of Grothendieck's duality conjecture in SGA 7 when the residue fields of the base scheme at closed points are perfect. The assumption on the residue fields is unnecessary for the class of 1-motives with semistable reduction everywhere. In general, this duality holds after inverting the residual characteristics. The definition of Neron models involves careful treat…
Duality for the condensed Weil-étale realisation of $1$-motives over $p$-adic fields
本文以凝聚 Weil 群上同调替代 Galois 上同调，引入 $1$-motives 的凝聚 Weil-étale 实现，从而将 Tate 对偶推广到 $p$-进数域上的 $1$-motives。
In the arithmetic of function fields Drinfeld modules play the role that elliptic curves take on in the arithmetic of number fields. As higher dimensional generalizations of Drinfeld modules, and as the appropriate analogues of abelian varieties, G. Anderson introduced pure t-motives. In this article we study the arithmetic of the later. We investigate which pure t-motives are semisimple, that is, isogenous to direct sums of simple ones. We give examples for pure t-motives which are not semisimple. Over finite fields the semisimplicity is equivalent to the semisimplicity of the endomorphism al…
The Arithmetic of Reducible Rank 2 Hypergeometric Motives
本文研究数域上可约且不规则的${}_3F_2(1)$超几何动机的算术，利用动机技术证明新求值公式，并给出与模形式$L$-函数精确值相关的例子。
We define Albanese and Picard 1-motives of smooth (simplicial) schemes over a perfect field. For smooth proper schemes, these are the classical Albanese and Picard varieties. For a curve, these are t he homological 1-motive of Lichtenbaum and the motivic $H^1$ of Deligne. This paper proves a conjecture of Deligne about providing an algebraic description, via 1-motives, of the first homology and cohomology groups of a complex algebraic variety. (L. Barbieri-Viale and V. Srinivas have also proved this independently.) It also contains a purely algebraic proof of Lichtenbaum's conjecture that the …
An introduction to mixed Tate motives
本文是一篇综述，系统介绍混合Tate动机的基本概念及其在多重zeta值、代数K理论、双曲几何和粒子物理等领域的广泛应用。
This is my habilitation thesis. As the tradition wants, I tried to give an introduction of my field of research. I post it on the ArXiv with the hope it can be useful to young researchers looking for a short and friendly text on cohomologies of algebraic varieties, periods, algebraic cycles and motives. I might one day find the energy to expand these notes and maybe translate them in English. In the meantime, please feel free to ask questions. The first sections of this text propose an introduction to the theory, I tried to present points of view and examples which are not always stressed in t…
We prove that the existence of an automorphism of finite order on a (defined over a number field) variety X implies the existence of algebraic linear relations between the logarithm of certain periods of X and the logarithm of special values of the Gamma-function. This implies that a slight variation of results by Anderson, Colmez and Gross on the periods of CM abelian varieties is valid for a larger class of CM motives. In particular, we prove a weak form of the period conjecture of Gross-Deligne. Our proof relies on the arithmetic fixed point formula (equivariant arithmetic Riemann-Roch theo…
We prove finiteness results for Tate--Shafarevich groups in degree 2 associated with 1--motives, rely them to Leopoldt's conjecture, and present an example of a semiabelian variety with an infinite Tate--Shafarevich group in degree 2. We also establish an arithmetic duality theorem for 1--motives over number fields which complements earlier results of Harari and Szamuely in this direction.
Local duality theorems for commutative algebraic groups
本研究构建任意域上含交换代数群对偶对象的k-1-motives范畴，建立任意特征局部域下关联群fppf上同调与对偶k-1-motive超上同调的Pontryagin对偶定理，还得到任意k-1-motive二阶上同调的对偶定理，可推广Lichtenbaum-van Hamel对偶。
Building upon our arithmetic duality theorems for 1-motives, we prove that the Manin obstruction related to a finite subquotient $\Be (X)$ of the Brauer group is the only obstruction to the Hasse principle for rational points on torsors under semiabelian varieties over a number field, assuming the finiteness of the Tate-Shaferevich group of the abelian quotient. This theorem answers a question by Skorobogatov in the semiabelian case and is a key ingredient of recent work on the elementary obstruction for homogeneous spaces over number fields. We also establish a Cassels-Tate type dual exact se…
On the new theory of 1-motives
本文为回复预印本审稿人的信函，探讨了新提出的1-动机理论的应用，给出了基于Bloch体积论解释的全局域上阿贝尔簇BSD猜想的部分新研究思路。
We describe some new general constructions of $p$-adic $L$-functions attached to certain arithmetically defined complex $L$-functions coming from motives over $\bold Q$ with coefficiens in a number field $T$, with $[T:\bold Q]<\infty$. These constructions are equivalent to proving some generalized Kummer congruences for critical special values of these complex $L$-functions.
We give a generalization of Poitou-Tate duality to schemes of finite type over rings of integers of global fields.
Arithmetic duality for two-dimensional local rings with perfect residue field
本研究针对具有完美剩余域的二维局部环，通过为算术上同调群构建代数群结构，对Saito的算术对偶性理论作出了改进。
On Transformation properties of hypergeometric motives and Diophantine equations
本文研究高斯超几何函数变换公式在超几何动机上的算术类比，并将其应用于某些丢番图方程的研究。
Michael HARRIS defined the arithmetic automorphic periods for certain cuspidal representations of $GL_{n}$ over quadratic imaginary fields in his Crelle paper 1997. He also showed that critical values of automorphic L-functions for $GL_{n}\times GL_{1}$ can be interpreted in terms of these arithmetic automorphic periods. In the thesis, we generalize his results in two ways. Firstly, the arithmetic automorphic periods have been defined over general CM fields. We also prove that these periods factorize as products of local periods over infinity places. Secondly, we show that critical values of a…
We show the compactly supported motive of the moduli stack of degree $n$ rational curves on the weighted projective stack $\mathcal{P}(a,b)$ is of mixed Tate type over any base field $K$ with $\text{char}(K) \nmid a,b$ and has class $\mathbb{L}^{(a+b)n+1}-\mathbb{L}^{(a+b)n-1}$ in the Grothendieck ring of stacks. In particular, this improves upon the result of [HP] regarding the arithmetic invariant of the moduli stack $\mathcal{L}_{1,12n} := \mathrm{Hom}_{n}(\mathbb{P}^1, \overline{\mathcal{M}}_{1,1})$ of stable elliptic fibrations over $\mathbb{P}^{1}$ with $12n$ nodal singular fibers and a …
Duality for Arithmetic $p$-adic Pro-étale Cohomology of Analytic Spaces
本研究验证了Colmez等人关于$p$-进数有限扩张上光滑部分紧合空间的算术$p$-进前平展上同调满足对偶性的猜想，借助Fontaine伽罗瓦下降技术由Fargues-Fontaine曲线的几何对偶性推导得出。
In this note we relate three topics for arithmetic schemes: a general duality for étale constructible torsion sheaves, an étale homology theory, and a Gersten-Bloch-Ogus-Kato complex. The results in this paper have been used in other papers of the authors ([JS], [Sa], [SaH] in the list of references).
Pure t-motives were introduced by G. Anderson as higher dimensional generalizations of Drinfeld modules, and as the appropriate analogs of abelian varieties in the arithmetic of function fields. In this article we develop their theory regarding morphisms, isogenies, Tate modules, and local shtukas. The later are the analog of p-divisible groups. We investigate which pure t-motives are semisimple, that is, isogenous to direct sums of simple ones. We give examples for pure t-motives which are not semisimple. Over finite fields the semisimplicity is equivalent to the semisimplicity of the endomor…
In this paper, we prove that the arithmetic automorphic periods for $GL_{n}$ over a CM field factorize through the infinite places. This generalizes a conjecture of Shimura in 1983, and is predicted by the Langlands correspondence between automorphic representations and motives.
G-functions, motives, and unlikely intersections -- old and new
本综述梳理G-函数在算术几何中的作用、其特殊值多项式关系与动机对称性的关联及Bombieri原理的应用，介绍该方法在非典型交与Zilber-Pink猜想研究中的新发展。
Arithmetic Duality
本文讨论了塔特在有限模和阿贝尔簇的伽罗瓦上同调中证明的对偶定理及其后续发展。
Arithmetic duality for $p$-adic pro-étale cohomology of analytic curves
该研究证明了$\textbf{Q}_p$有限扩张上光滑dagger曲线的算术$p$-进pro-étale上同调的庞加莱对偶性，推导结合了谱序列、几何比较定理与经典对偶，还验证了乘积相容性并得到相关上同调的泛函分析性质。
$v$-adic periods of Carlitz motives and Chowla-Selberg formula revisited
该研究在函数域数论框架下，利用带复乘的Carlitz动机的$v$-进晶体-德拉姆周期阐释$v$-进算术伽马值，建立Ogus型Chowla-Selberg公式，证明周期的代数无关性，并推导伽马值代数关系的来源。
On the local equivariant Tamagawa number conjecture for Tate motives
本文在无分支条件下证明了塔特动机的局部等变Tamagawa数猜想，推广了Burns--Flach和Burns--Sano的先前工作。
In this article we introduce and study a motivic category in the arithmetic of function fields, namely the category of motives over an algebraic closure $L$ of a finite field with coefficients in a global function field over this finite field. It is semi-simple, non-neutral Tannakian and possesses all the expected fiber functors. This category generalizes the previous construction due to Anderson and is more relevant for applications to the theory of $G$-Shtukas, such as formulating the analog of the Langlands-Rapoport conjecture over function fields. We further develop the analogy with the ca…
A motivic derived Fourier transform
针对正特征域上导出Artin stacks的导出向量丛，本文构造了以Artin-Schreier动机为核的有理平展动机傅里叶变换理论，并建立了其核心基本性质，为相关研究提供了重要理论基础。
Arithmetic level raising for certain quaternionic unitary Shimura variety
本文证明了在分支情况下四维辛群的算术提升定理，为贝利森-布洛赫-卡托猜想中的某些兰金-塞尔伯格动机提供了关键步骤，同时可视为特殊纤维 Shimura 变种在分支特征下的伊哈拉引理或塔特猜想类比。
If K is a number field, arithmetic duality theorems for tori and complexes of tori over K are crucial to understand local-global principles for linear algebraic groups over K. When K is a global field of positive characteristic, we prove similar arithmetic duality theorems, including a Poitou-Tate exact sequence for Galois hypercohomology of complexes of tori. One of the main ingredients is Artin-Mazur-Milne duality theorem for fppf cohomology of finite flat commutative group schemes.
Rigid analytic 1-motives and conjugate uniformization of abeloid varieties
本文针对p进域上的阿贝尔簇，研究刚性解析1-动机理论及阿贝尔簇的共轭单值化，建立了形式与刚性解析1-动机的等价性等结果，还构造了相关p可除群。
Introduction to Anderson t-motives: a survey
本文综述 Anderson t-模的基本理论，涵盖格、同调群、张量积、对偶定理、自同态与 L-函数，并引入仿射方程、T-可除模、完整序列等新概念，辅以显式计算实例与若干新结果。
The four operations on perverse motives
本文利用 étale motives 三角范畴构造了反常混合动机的阿贝尔范畴，证明其导出范畴具备 Grothendieck 四运算及相关函子，并证明反常层的经典构造具有动机性且与 Hodge 理论相容。
Steenrod operations and symplectic arithmetic duality
本文基于2025年AMS代数几何夏季研讨会报告，介绍Tate提出的有限域上曲面Brauer群辛形式存在猜想，并梳理相关文献的证明思路。
Arithmetic volume of Shtukas and Langlands duality
本文扩展了Feng-Yun-Zhang的工作，将Shukas的算术体积与ζ函数的导数联系起来，允许任意共权重，并首次在L-函数导数的公式中赋予对偶群结构作用。
Class field theory, Hasse principles and Picard-Brauer duality for two-dimensional local rings
本文基于具有完美剩余域的二维局部环的算术对偶，通过分析算术上同调的ind-pro代数群结构并证明其有限性性质，推导出了类域论、Hasse原理及除子类群与Brauer群的对偶。
Weil-étale cohomology and duality for arithmetic schemes in negative weights
本文研究了算术方案在负权下的 Weil-étale 上同调和对偶性，推广了 Flach 和 Morin 的构造并去除了适当的和正则的假设。
Regulators in the Arithmetic of Function Fields
本文研究函数域算术中Anderson A-动机的调节器概念，证明了A-动机上同调的有限性，并在特定重量条件下显示调节器源和目标的维度相同，但发现调节器像可能不具有满秩，影响了Beilinson猜想的类比。
Duality for arithmetic Dijkgraaf-Witten theory
本文针对算术Dijkgraaf-Witten理论，在含n次单位根的全虚数域上建立类似等价性，通过二次域与四元数群Q_8的例子说明整数环上等价性失效情况，并给出其成立的充分条件。
Prismatic Steenrod operations and arithmetic duality on Brauer groups
本文构建并分析了
The present paper is devoted to the relations between Deligne's conjecture on critical values of motivic $L$-functions and the multiplicative relations between periods of arithmetically normalized automorphic forms on unitary groups. In the first place, we combine the Ichino--Ikeda--Neal-Harris (IINH) formula -- which is now a theorem -- with an analysis of cup products of coherent cohomological automorphic forms on Shimura varieties to establish relations between certain automorphic periods and critical values of Rankin-Selberg and Asai $L$-functions of ${\rm GL}(n)\times{\rm GL}(m)$ over CM …
Arithmetic field theory via pro-p duality groups
本文通过pro-p对偶群理论定义适合算术拓扑的cobordism范畴，并利用Frobenius代数分类拓扑量子场论，推导出局部p进域上Galois扩展的计数公式。
On the Integral Part of A-Motivic Cohomology
本文研究了正特征全局域上的A-动机上同调的整数部分，提出模型版本和l-adic版本的定义，并证明模型版本包含l-adic版本，同时探讨了regulated extensions的子模块。
Let $p$ be an odd prime. We prove the cyclotomic Iwasawa Main Conjecture of K.Kato for the motive attached to an eigencuspform $f\in S_{k}(Γ_{0}(N))$ with arbitrary reduction type at $p$ under mild assumptions on the residual Galois representation $\barρ_{f}$. Under the same hypotheses, we also prove the generalized Iwasawa Main Conjecture for $p$-adic families of modular forms. The Iwasawa Main Conjecture for $f$ is deduced by a limit argument involving fundamental lines from a universal Iwasawa Main Conjecture over the universal deformation space of $\barρ_{f}$, which itself follows from the…
We discuss duality pairings on integral étale motivic cohomology groups of regular and proper schemes over algebraically closed fields, local fields, finite fields, and arithmetic schemes.
We improve the arithmetic duality formalism of the rational etale site. This improvement allows us to avoid some exotic approximation arguments on local fields with ind-rational base, thus simplifying the proofs of the previously established duality theorems in the rational etale site and making the formalism more user-friendly. In a subsequent paper, this new formulation will be used in a crucial way to study duality for two-dimensional local rings.
Arithmetic duality for finite Galois modules over two-dimensional local fields of mixed characteristic
研究更高局部域的对偶性，结合Suzuki和Kato的结果，在更弱条件下获得p- torsion对偶性陈述，涉及局部紧致Hausdorff拓扑下的étale上同调群。
Duality between prime factors and the Prime Number Theorem for Arithmetic Progressions -- II
本文利用涉及 Moebius 函数与不同素因子个数 ω(n) 的次大、最小素因子深层对偶恒等式，由算术级数素数定理推出相关加权和为零，并给出定量版本。
Colmez conjectured a product formula for periods of abelian varieties over number fields with complex multiplication and proved it in some cases. His conjecture is equivalent to a formula for the Faltings height of CM abelian varieties in terms of the logarithmic derivatives at $s=0$ of certain Artin $L$-functions. In a series of articles we investigate the analog of Colmez's theory in the arithmetic of function fields. There abelian varieties are replaced by Drinfeld modules and their higher dimensional generalizations, so-called $A$-motives. In the present article we prove the product formul…
Finite Fourier Duality, Radial Values, and Arithmetic of a Mod Eight False Theta Quotient
研究模八假 theta 矩商式的径向行为，建立有限傅里叶闭包，证明周期狄利克雷值非零，并给出系数整除性、二进插值及欧拉变换正性等算术结果。
We propose a relationship between the cohomology of arithmetic groups, and the motivic cohomology of certain (Langlands-)attached motives. The motivic cohomology group in question is that related, by Beilinson's conjecture, to the adjoint $L$-function at $s=1$. We present evidence for the conjecture using the theory of periods of automorphic forms, and using analytic torsion.
Duality Between Prime Factors and The Prime Number Theorem For Arithmetic Progressions -- Higher Order Dualities
本文研究了素因子与算术级数素数定理之间的对偶性，通过高阶对偶性揭示了μ(n)和ω(n)的性质，推导出新的求和公式和密度型定理。
Factorization of periods, construction of automorphic motives and Deligne's conjecture over CM-fields
本文探讨了自守L函数临界值与单位群上算术归一化自守形式周期的乘法关系，构造了CM自守动机并验证了Deligne猜想，利用IINH公式和上同调自守形式的杯积分析，证明了自守周期可分解为协调上同调形式的乘积。
Computations of Cohomology of Arithmetic Groups, Part 1
本文提出一种更简单、快速且结构化的方法，计算算术群$GL_4({\mathbb Z})$等在不同最高权表示系数下的边界与Eisenstein上同调，并提出了类似Serre对偶的猜想，经30个表示族验证。
After Zagier proved that the traces of singular moduli $j(z)$ are Fourier coefficients of a weakly holomorphic modular form, various properties of the traces of the singular values of modular functions mostly on the full modular group $PSL_2(\mathbb{Z})$ have been investigated such as their exact formulas, limiting distribution, duality, and congruences. The purpose of this paper is to generalize these arithmetic properties of traces of singular values of a weakly holomorphic modular function on the full modular group to those on a congruence subgroup $Γ_0(N)$.
Local Langlands Duality and a Duality of Conformal Field Theories
本文揭示 GL_n 的局部朗兰兹对偶与二维量子引力 T 对偶共享同一对称性原理，即局部傅里叶变换在 l 进与复形式下产生局部朗兰兹参数的对称性。
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