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The inhomogeneous Groshev type theory for dual Diophantine approximation on manifolds is developed. In particular, the notion of nice manifolds is introduced and the divergence part of the theory is established for all such manifolds. Our…

Number Theory · Mathematics 2010-09-29 Dzmitry Badziahin , Victor Beresnevich , Sanju Velani

In this extended abstract we deal with the relations between the numerical/diophantine approximation and the symbolic/algebraic geometry approachs to solving of multivariate diophentine polynomial systems, obtaining several consecuences…

Algebraic Geometry · Mathematics 2025-10-20 D. Castro , K. Haegele , J. E. Morais , L. M. Pardo

The goal of this paper is to develop a coherent theory for inhomogeneous Diophantine approximation on curves in $R^n$ akin to the well established homogeneous theory. More specifically, the measure theoretic results obtained generalize the…

Number Theory · Mathematics 2008-09-24 Dzmitry Badziahin

Let $\mathcal{C}$ be a non-degenerate planar curve. We show that the curve is of Khintchine-type for convergence in the case of simultaneous approximation with two independent approximation functions; that is if a certain sum converges then…

Number Theory · Mathematics 2007-05-23 Dzmitry Badziahin , Jason Levesley

We prove analogues of some classical results from Diophantine approximation and metric number theory (namely Dirichlet's theorem and the Duffin--Schaeffer theorem) in the setting of diagonal Diophantine approximation, i.e. approximating…

Number Theory · Mathematics 2016-10-27 Matthew Palmer

Let $X = G/\Gamma$, where $G$ is a Lie group and $\Gamma$ is a lattice in $G$, and let $U$ be a subset of $X$ whose complement is compact. We use the exponential mixing results for diagonalizable flows on $X$ to give upper estimates for the…

Dynamical Systems · Mathematics 2019-08-27 Dmitry Kleinbock , Shahriar Mirzadeh

A Hausdorff measure version of W.M. Schmidt's inhomogeneous, linear forms theorem in metric number theory is established. The key ingredient is a `slicing' technique motivated by a standard result in geometric measure theory. In short,…

Number Theory · Mathematics 2007-05-23 Victor Beresnevich , Sanju Velani

In this survey article, we explore a central theme in Diophantine approximation inspired by a celebrated result of Besicovitch on the Hausdorff dimension of well approximable real numbers. We outline some of the key developments stemming…

Number Theory · Mathematics 2025-09-18 Victor Beresnevich , Sanju Velani

The inhomogeneous metric theory for the set of simultaneously $\psi$-approximable points lying on a planar curve is developed. Our results naturally incorporate the homogeneous Khintchine-Jarnik type theorems recently established in [Ann.…

Number Theory · Mathematics 2016-04-01 Victor Beresnevich , Sanju Velani , Robert C. Vaughan

The metrical theory of the product of consecutive partial quotients is associated with the uniform Diophantine approximation, specifically to the improvements to Dirichlet's theorem. Achieving some variant forms of metrical theory in…

Number Theory · Mathematics 2023-09-19 Bo Tan , Qing-Long Zhou

Diophantine approximation is traditionally the study of how well real numbers are approximated by rationals. We propose a model for studying Diophantine approximation in an arbitrary totally bounded metric space where the rationals are…

Number Theory · Mathematics 2024-03-20 Jonathan M. Fraser , Henna Koivusalo , Felipe A. Ramirez

In this paper we discuss metric theory associated with the affine (inhomogeneous) linear forms in the so called doubly metric settings within the classical and the mixed setups. We consider the system of affine forms given by $\qq\mapsto…

Number Theory · Mathematics 2020-06-03 Mumtaz Hussain , Simon Kristensen , David Simmons

Fundamental questions in Diophantine approximation are related to the Hausdorff dimension of sets of the form $\{x\in \mathbb{R}: \delta_x = \delta\}$, where $\delta \geq 1$ and $\delta_x$ is the Diophantine approximation rate of an…

Number Theory · Mathematics 2009-03-13 Julien Barral , Stephane Seuret

The goal of this paper is to develop the theory of weighted Diophantine approximation of rational numbers to $p$-adic numbers. Firstly, we establish complete analogues of Khintchine's theorem, the Duffin-Schaeffer theorem and the…

Number Theory · Mathematics 2021-07-08 Victor Beresnevich , Jason Levesley , Benjamin Ward

This paper is a survey of old and recent results related to Khintichine's singular matrices and their applications in the theory of Diophantine approximations. The paper is written in Russian. English version should appear in "Russian…

Number Theory · Mathematics 2015-05-14 Nikolay G. Moshchevitin

We begin with a brief treatment of Hausdorff measure and Hausdorff dimension. We then explain some of the principal results in Diophantine approximation and the Hausdorff dimension of related sets, originating in the pioneering work of…

Number Theory · Mathematics 2007-05-23 M. Maurice Dodson , Simon Kristensen

In this short paper we prove a quantitative version of the Khintchine-Groshev Theorem with congruence conditions. Our argument relies on a classical argument of Schmidt on counting generic lattice points, which in turn relies on a certain…

Number Theory · Mathematics 2022-08-01 Mahbub Alam , Anish Ghosh , Shucheng Yu

The classical Khintchine--Jarn\'ik Theorem provides elegant criteria for determining the Lebesgue measure and Hausdorff measure of sets of points approximated by rational points, which has inspired much modern research in metric Diophantine…

Number Theory · Mathematics 2026-04-16 Yubin He

Many results related to quantitative problems in the metric theory of Diophantine approximation are asymptotic, such as the number of rational solutions to certain inequalities grows with the same rate almost everywhere modulo an asymptotic…

Number Theory · Mathematics 2024-03-01 Ying Wai Lee , Andrew Scoones

Metric Diophantine approximation in its classical form is the study of how well almost all real numbers can be approximated by rationals. There is a long history of results which give partial answers to this problem, but there are still…

Number Theory · Mathematics 2009-07-02 Alan K. Haynes