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The goal of this paper is to prove a formula expressing the modular height of a unitary Shimura variety over a CM number field in terms of the logarithm derivative of the Hecke L-function associated with the CM extension. In a more specific…

数论 · 数学 2025-09-30 Ziqi Guo

Upper bounds are given for the weight distribution of binary weakly self-dual codes. To get these new bounds, we introduce a novel method of utilizing unitary operations on Hilbert spaces. This method is motivated by recent progress on…

组合数学 · 数学 2007-07-16 Vwani P. Roychowdhury , Farrokh Vatan

Given a line bundle L on a smooth projective curve over the complex numbers, we show that a general extension E of L by the trivial line bundle is very stable: line bundles contained in E have degree much less than half the degree of E.…

代数几何 · 数学 2011-05-17 Soulé Christophe

We define modular equations in the setting of PEL Shimura varieties as equations describing Hecke correspondences, and prove upper bounds on their degrees and heights. This extends known results about elliptic modular polynomials, and…

代数几何 · 数学 2022-03-09 Jean Kieffer

We present bounds for the geometric degree of the tangent bundle and the tangential variety of a smooth affine algebraic variety $V$ in terms of the geometric degree of $V$. We first analyze the case of curves, showing an explicit relation…

代数几何 · 数学 2024-03-19 Gabriela Jeronimo , Leonardo Lanciano , Pablo Solernó

We prove a closed formula counting semistable twisted (or meromorphic) Higgs bundles of fixed rank and degree over a smooth projective curve of genus g, defined over a finite field, when the degree of the twisting line bundle is at least…

代数几何 · 数学 2020-03-04 Sergey Mozgovoy , Olivier Schiffmann

In this book, we establish a theory of adelic line bundles over quasi-projective varieties over finitely generated fields. Besides definitions of adelic line bundles, we consider their intersection theory, volume theory, and height theory,…

数论 · 数学 2025-06-17 Xinyi Yuan , Shou-Wu Zhang

We establish, in the setting of Arakelov geometry over adelic curves, an arithmetic Hilbert-Samuel theorem describing the asymptotic behaviour of the metrized graded linear series of an adelic line bundle in terms of its arithmetic…

代数几何 · 数学 2022-07-06 Huayi Chen , Atsushi Moriwaki

The integral model of a $\mathrm{GU}(n-1,1)$ Shimura variety carries a universal abelian scheme over it, and the dual top exterior power of its Lie algebra carries a natural hermitian metric. We express the arithmetic volume of this…

数论 · 数学 2024-12-18 Jan Hendrik Bruinier , Benjamin Howard

Based on works by Hopf, Weinberger, Hamilton and Evans, we state and prove the strong elliptic maximum principle for smooth sections in vector bundles over Riemannian manifolds and give some applications in Differential Geometry. Moreover,…

微分几何 · 数学 2012-05-14 Andreas Savas-Halilaj , Knut Smoczyk

The purpose of this article is to produce effective versions of some rigidity results in algebra and geometry. On the geometric side, we focus on the spectrum of primitive geodesic lengths (resp., complex lengths) for arithmetic hyperbolic…

几何拓扑 · 数学 2018-11-21 Benjamin Linowitz , D. B. McReynolds , Paul Pollack , Lola Thompson

Let $H$ be a real Hilbert space. In this short note, using some of the properties of bounded linear operators with closed range defined on $H$, certain bounds for a specific convex subset of the solution set of infinite linear…

泛函分析 · 数学 2020-06-30 Projesh Nath Choudhury , M. Rajesh Kannan , K. C. Sivakumar

The Hilbert scheme of n points in the projective plane parameterizes degree n zero-dimensional subschemes of the projective plane. We examine the dual cones of effective divisors and moving curves on the Hilbert scheme. By studying…

代数几何 · 数学 2012-03-05 Jack Huizenga

We provide notions of numerical effectiveness and numerical flatness for Higgs vector bundles on compact K\"ahler manifolds in terms of fibre metrics. We prove several properties of bundles satisfying such conditions and in particular we…

微分几何 · 数学 2008-03-05 Ugo Bruzzo , Beatriz Graña-Otero

In this article, we give an explicit and uniform lower bound of the arithmetic Hilbert-Samuel function of projective hypersurfaces, which has the optimal dominant term. As an application, we apply this lower bound in the determinant method.

代数几何 · 数学 2024-10-18 Chunhui Liu

We provide optimal upper bounds on the growth of iterated sumsets $hA=A+\dots+A$ for finite subsets $A$ of abelian semigroups. More precisely, we show that the new upper bounds recently derived from Macaulay's theorem in commutative algebra…

交换代数 · 数学 2023-10-17 Shalom Eliahou , Eshita Mazumdar

We apply a variant of the square-sieve to produce a uniform upper bound for the number of rational points of bounded height on a family of surfaces that admit a fibration over the projective line, whose general fibre is a hyperelliptic…

数论 · 数学 2021-09-28 Dante Bonolis , Tim Browning

We prove a central limit theorem for smooth linear statistics associated with zero divisors of standard Gaussian holomorphic sections in a sequence of holomorphic line bundles with Hermitian metrics of class $\mathscr{C}^{3}$ over a compact…

复变函数 · 数学 2025-02-10 Afrim Bojnik , Ozan Günyüz

In this paper, we prove a uniform version of quantum unique ergodicity for high-frequency eigensections of a certain series of unitary flat bundles over arithmetic surfaces.

动力系统 · 数学 2024-11-20 Qiaochu Ma

In this paper, we prove a general result computing the number of rational points of bounded height on a projective variety $V$ which is covered by lines. The main technical result used to achieve this is an upper bound on the number of…

代数几何 · 数学 2007-05-23 David McKinnon