2025/07/06 by Victor Beresnevich, Beresnevich, Victor, David Simmons +3 · 1 citation
Computer Science · Mathematics · #Algebraic Geometry and Number Theory #Dynamical Systems (math.DS) #FOS: Mathematics #Mathematical Dynamics and Fractals #Number Theory (math.NT) #Topological and Geometric Data Analysis
paper · pdf · doi:10.48550/arxiv.2507.04405
openalex publication_date 2025/07/06 · openalex created_date 2025/10/20 · openalex updated_date 2026/07/28
In twisted Diophantine approximation, for a fixed m× n matrix \boldsymbolα one is interested in sets of vectors \boldsymbolβ∈\mathbb Rm such that the system of affine forms \mathbb Rn \ni \mathbf q ↦ \boldsymbolα\mathbf q + \boldsymbolβ∈ \mathbb Rm satisfies some given Diophantine condition. In this paper we introduce the notion of manifolds which are of \boldsymbolα-twisted Khintchine type for convergence or divergence. We provide sufficient conditions under which nondegenerate analytic manifolds exhibit this twisted Khintchine-type behaviour. Furthermore, we investigate the intersection properties of the sets of \boldsymbolα-twisted badly approximable and well approximable vectors with nondegenerate manifolds.