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相关论文: Effective mapping class group dynamics I: Counting…

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We give quantitative bounds for the number of quasi-integral points in orbits of semigroups of rational maps under some conditions, generalizing previous work of L. C. Hsia and J. Silverman (2011) for orbits generated by the iterations of…

数论 · 数学 2019-05-13 Jorge Mello

A Teichm\"uller space $Teich$ is a quotient of the space of all complex structures on a given manifold $M$ by the connected components of the group of diffeomorphisms. The mapping class group $\Gamma$ of $M$ is the group of connected…

代数几何 · 数学 2016-03-03 Misha Verbitsky

In this paper, we prove some exact estimates for the discrete Neumann energy of a ball and a circular ring in Euclidean space for points located on circles. The proofs are based on dissymmetrization and analysis of the asymptotic behavior…

偏微分方程分析 · 数学 2021-12-14 Elena Prilepkina , Anna Afanaseva-Grigoreva

Accurate EV power estimation underpins range prediction and energy management, yet practitioners need both point accuracy and trustworthy uncertainty. We propose an anchored-ensemble Long Short-Term Memory (LSTM) with a Student-t likelihood…

机器学习 · 计算机科学 2025-11-11 Ghazal Farhani , Taufiq Rahman , Kieran Humphries

We study new effective curve classes on the moduli space of stable pointed rational curves given by the fixed loci of subgroups of the permutation group action. We compute their numerical classes and provide a strategy for writing them as…

代数几何 · 数学 2014-06-10 Han-Bom Moon , David Swinarski

We prove an effective version of a result due to Einsiedler, Mozes, Shah and Shapira on the asymptotic distribution of primitive rational points on expanding closed horospheres in the space of lattices. Key ingredients of our proof include…

数论 · 数学 2023-07-18 Daniel El-Baz , Min Lee , Andreas Strömbergsson

For every compact almost complex manifold (M,J) equipped with a J-preserving circle action with isolated fixed points, a simple algebraic identity involving the first Chern class is derived. This enables us to construct an algorithm to…

辛几何 · 数学 2012-06-15 Leonor Godinho , Silvia Sabatini

We give a precise estimate for the number of lattice points in certain bounded subsets of $\mathbb{R}^{n}$ that involve `hyperbolic spikes' and occur naturally in multiplicative Diophantine approximation. We use Wilkie's o-minimal structure…

数论 · 数学 2019-05-10 Reynold Fregoli

We study isometric actions of compact Lie groups on complete orientable positively curved $n$-manifolds whose orbit spaces have non-empty boundary in the sense of Alexandrov geometry. In particular, we classify quotients of the unit sphere…

微分几何 · 数学 2024-02-23 Claudio Gorodski , Andreas Kollross , Burkhard Wilking

We establish effective equidistribution theorems, with a polynomial error rate, for orbits of unipotent subgroups in quotients of quasi-split, almost simple Linear algebraic groups of absolute rank 2. As an application, inspired by the…

动力系统 · 数学 2025-07-22 Elon Lindenstrauss , Amir Mohammadi , Zhiren Wang , Lei Yang

Each vector space that is endowed with a quadratic form determines its Clifford algebra. This algebra, in turn, contains a distinguished group, known as the Lipschitz group. We show that only a quotient of this group remains meaningful in…

度量几何 · 数学 2024-02-02 Hans Havlicek

This article suggests an efficient class of estimators of population median of the study variable using an auxiliary variable. Asymptotic expressions of bias and mean square error of the proposed class of estimators have been obtained.…

统计理论 · 数学 2014-02-25 Prayas Sharma , Rajesh Singh

We show that the horofunction boundary of Teichm\"uller space with Thurston's Lipschitz metric is the same as the Thurston boundary. We use this to determine the isometry group of the Lipschitz metric, apart from in some exceptional cases.…

几何拓扑 · 数学 2015-10-05 Cormac Walsh

We study fundamental groups of toroidal compactifications of non compact ball quotients and show that the Shafarevich conjecture on holomorphic convexity for these complex projective manifolds is satisfied in dimension 2 provided the…

代数几何 · 数学 2018-05-03 Philippe Eyssidieux

We study the Carath\'eodory metric on some generalized Teichm\"uller spaces. Earle showed that the Carath\'eodory metric is complete on any Teichm\"uller space. Miyachi extended this result for Asymptotic Teichm\"uller spaces. We study the…

复变函数 · 数学 2023-12-05 Xinlong Dong , Sudeb Mitra

In this paper we explore the idea that Teichm\"uller space is hyperbolic "on average." Our approach focuses on studying the geometry of geodesics which spend a definite proportion of time in some thick part of Teichm\"uller space. We…

几何拓扑 · 数学 2013-11-27 Spencer Dowdall , Moon Duchin , Howard Masur

For a locally compact second countable group G and a lattice subgroup Gamma, we give an explicit quantitative solution of the lattice point counting problem in general domains in G, provided that i) G has finite upper local dimension, and…

动力系统 · 数学 2009-03-10 Alexander Gorodnik , Amos Nevo

Let $G$ be a semisimple algebraic group. We develop a machinery for manipulation and manufacture of well-rounded families $\left\{ \mathcal{B}_{T}\right\} _{T>0}\subset G$ as they were defined in a work by A. Gorodnik and A. Nevo. The…

动力系统 · 数学 2020-11-25 Tal Horesh , Yakov Karasik

In this note, we provide a characterization for the set of extreme points of the Lipschitz unit ball in a specific vectorial setting. While the analysis of the case of real-valued functions is covered extensively in the literature, no…

泛函分析 · 数学 2025-10-24 Kristian Bredies , Jonathan Chirinos Rodriguez , Emanuele Naldi

We prove a sharp bound for the remainder term of the number of lattice points inside a ball, when averaging over a compact set of (not necessarily unimodular) lattices, in dimensions two and three. We also prove that such a bound cannot…

数论 · 数学 2013-11-13 Samuel Holmin