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相关论文: The Homogeneous Approximation Property and the Com…

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This paper develops the metric theory of simultaneous inhomogeneous Diophantine approximation on a planar curve with respect to multiple approximating functions. Our results naturally generalize the homogeneous Lebesgue measure and Hausdor?…

数论 · 数学 2014-06-18 Mumtaz Hussain , Tatiana Yusupova

In this study, the orthogonalization process for different inner products is applied to pairwise comparisons. Properties of consistent approximations of a given inconsistent pairwise comparisons matrix are examined. A method of a derivation…

其他计算机科学 · 计算机科学 2020-02-18 W. W. Koczkodaj , R. Smarzewski , J. Szybowski

On H-type sub-Riemannian manifolds we establish sub-Hessian and sub-Laplacian comparison theorems which are uniform for a family of approximating Riemannian metrics converging to the sub-Riemannian one. We also prove a sharp sub-Riemannian…

微分几何 · 数学 2025-05-06 Fabrice Baudoin , Erlend Grong , Luca Rizzi , Sylvie Vega-Molino

The issue of the equivalence between Jordan and Einstein conformal frames in scalar-tensor gravity is revisited, with emphasis on implementing running units in the latter. The lack of affine parametrization for timelike worldlines and the…

广义相对论与量子宇宙学 · 物理学 2008-11-26 Valerio Faraoni , Shahn Nadeau

In this short paper, we show that any Lam\'e system whose Dirichlet-to-Neumann map for the elastic wave equation agrees with the one arising from the homogeneous Lam\'e system must actually be homogeneous. We do not need to impose any…

偏微分方程分析 · 数学 2026-03-31 Joonas Ilmavirta , Teemu Saksala , Lili Yan

In this work we examine the stability of some classes of integrals, and in particular with respect to homogenization. The prototypical case is the homogenization of quadratic energies with periodic coefficients perturbed by a term vanishing…

偏微分方程分析 · 数学 2024-10-15 Andrea Braides , Gianni Dal Maso , Claude Le Bris

In this paper we generalize the comparison theorem of Hecht and Taylor to arbitrary parabolic subalgebras of a complex reductive Lie algebra and then apply our generalized comparison theorem to obtain results about the geometric realization…

表示论 · 数学 2008-04-03 Tim Bratten

In a landmark paper, D.Y. Kleinbock and G.A. Margulis established the fundamental Baker-Sprindzuk conjecture on homogeneous Diophantine approximation on manifolds. Subsequently, there has been dramatic progress in this area of research.…

数论 · 数学 2014-02-26 Victor Beresnevich , Sanju Velani

We consider a system of differential equations in a fast long range dependent random environment and prove a homogenization theorem involving multiple scaling constants. The effective dynamics solves a rough differential equation, which is…

概率论 · 数学 2019-12-02 Johann Gehringer , Xue-Mei Li

We present a technique for estimating the similarity between objects such as movies or foods whose proper representation depends on human perception. Our technique combines a modest number of human similarity assessments to infer a pairwise…

人工智能 · 计算机科学 2018-02-19 Jesse Anderton , Pavel Metrikov , Virgil Pavlu , Javed Aslam

This paper studies homogenization of stochastic differential systems. The standard example of this phenomenon is the small mass limit of Hamiltonian systems. We consider this case first from the heuristic point of view, stressing the role…

数学物理 · 物理学 2018-08-16 Jeremiah Birrell , Jan Wehr

In this work we present a definition for coherence and compatibility of multilinear mappings and homogenous polynomial classes. These definitions are more restricted than the ones proposed before. We began analyzing this new definition in a…

泛函分析 · 数学 2018-10-24 Joilson Ribeiro , Fabrício Santos , Ewerton Torres

This work developes a quantitative framework for describing the overcompleteness of a large class of frames. A previous paper introduced notions of localization and approximation between two frames $\mathcal{F} = \{f_i\}_{i \in I}$ and…

泛函分析 · 数学 2007-05-23 R. Balan , P. G. Casazza , C. Heil , Z. Landau

Let $H$ and $K$ be two complex inner product spaces with dim$(X)\geq 2$. We prove that for each non-zero additive mapping $A:H \to K$ with dense image the following statements are equivalent: $(a)$ $A$ is (complex) linear or…

泛函分析 · 数学 2024-10-15 Lei Li , Siyu Liu , Antonio M. Peralta

In this paper we extend the notion of approximate dual to fusion frames and present some approaches to obtain dual and approximate alternate dual fusion frames. Also, we study the stability of dual and approximate alternate dual fusion…

表示论 · 数学 2016-09-01 Ali Akbar Arefijamaal , Fahimeh Arabyani Neyshaburi

In this article, we investigate homogeneous versions of certain nonlinear Ramsey-theoretic results, with three significant applications. As the first application, we prove that for every finite coloring of $\mathbb{Z}^+$, there exist an…

组合数学 · 数学 2025-04-16 Sukumar Das Adhikari , Sayan Goswami

The tautness for a cohomology theory is formulated and studied by various authors. However, the analogous property is not considered for a homology theory. In this paper, we will define and study this very property for the Massey homology…

代数拓扑 · 数学 2021-05-11 Anzor Beridze , Leonard Mdzinarishvili

We examine Fourier frames and, more generally, frame measures for different probability measures. We prove that if a measure has an associated frame measure, then it must have a certain uniformity in the sense that the weight is distributed…

泛函分析 · 数学 2021-07-20 Dorin Ervin Dutkay , Chun-Kit Lai

In metric Diophantine approximation there are two main types of approximations: simultaneous and dual for both homogeneous and inhomogeneous settings. The well known measure-theoretic theorems of Khintchine and Jarn\'ik are fundamental in…

数论 · 数学 2016-09-14 Dzmitry Badziahin , Stephen Harrap , Mumtaz Hussain

We introduce a supporting combinatorial framework for the Flat Wall Theorem. In particular, we suggest two variants of the theorem and we introduce a new, more versatile, concept of wall homogeneity as well as the notion of regularity in…

离散数学 · 计算机科学 2022-10-06 Ignasi Sau , Giannos Stamoulis , Dimitrios M. Thilikos