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We study lower bounds for the Minkowski and Hausdorff dimensions of the algebraic sum E+K of two subsets E and K of d-dimensional Euclidean space.

Classical Analysis and ODEs · Mathematics 2008-08-14 Daniel M. Oberlin

We discuss smooth metric measure spaces admitting two weighted Einstein representatives of the same weighted conformal class. First, we describe the local geometries of such manifolds in terms of certain Einstein and quasi-Einstein warped…

Differential Geometry · Mathematics 2025-04-11 Miguel Brozos-Vázquez , Eduardo García-Río , Diego Mojón-Álvarez

We show that the positive mass theorem holds for continuous Riemannian metrics that lie in the Sobolev space $W^{2, n/2}_{loc}$ for manifolds of dimension less than or equal to $7$ or spin-manifolds of any dimension. More generally, we give…

Differential Geometry · Mathematics 2014-08-28 James D. E. Grant , Nathalie Tassotti

We show that affine coordinate subspaces of dimension at least two in Euclidean space are of Khintchine type for divergence. For affine coordinate subspaces of dimension one, we prove a result which depends on the dual Diophantine type of…

Number Theory · Mathematics 2017-11-23 Fabian Süess

We extend Lerner's recent approach to sparse domination of Calder\'on--Zygmund operators to upper doubling (but not necessarily doubling), geometrically doubling metric measure spaces. Our domination theorem is different from the one…

Classical Analysis and ODEs · Mathematics 2019-04-05 Alexander Volberg , Pavel Zorin-Kranich

Euclidean embeddings of data are fundamentally limited in their ability to capture latent semantic structures, which need not conform to Euclidean spatial assumptions. Here we consider an alternative, which embeds data as discrete…

Machine Learning · Computer Science 2019-05-10 Charlie Frogner , Farzaneh Mirzazadeh , Justin Solomon

Let $X$ be a metric space equipped with a doubling measure. We consider weights $w(x)=\operatorname{dist}(x,E)^{-\alpha}$, where $E$ is a closed set in $X$ and $\alpha\in\mathbb R$. We establish sharp conditions, based on the Assouad…

Classical Analysis and ODEs · Mathematics 2017-05-04 Bartłomiej Dyda , Lizaveta Ihnatsyeva , Juha Lehrbäck , Heli Tuominen , Antti V. Vähäkangas

Consider the minimal renormalizable extension of the Standard Model with purely dimensionless couplings, successful electroweak symmetry breaking (via the Coleman-Weinberg mechanism) and a see-saw mechanism for neutrino mass: we will call…

High Energy Physics - Phenomenology · Physics 2013-03-13 Latham Boyle , Shane Farnsworth , Joseph Fitzgerald , Maitagorri Schade

In order to investigate the phenomenological implications of warped spaces in more than five dimensions, we consider a $4+1+\delta$ dimensional extension to the Randall and Sundrum model in which the space is warped with respect to a single…

High Energy Physics - Phenomenology · Physics 2015-03-17 Paul R. Archer , Stephan J. Huber

In this article, we address pointwise sparse domination for multilinear Calder\'on-Zygmund operators on upper doubling, geometrically doubling metric measure spaces. As a consequence, we have obtained sharp quantitative weighted estimates…

Classical Analysis and ODEs · Mathematics 2020-06-23 Abhishek Ghosh , Ankit Bhojak , Parasar Mohanty , Saurabh Shrivastava

Consider~\(n\) nodes~\(\{X_i\}_{1 \leq i \leq n}\) independently distributed in the unit square~\(S,\) each according to a distribution~\(f\) and let~\(K_n\) be the complete graph formed by joining each pair of nodes by a straight line…

Probability · Mathematics 2023-05-15 Ghurumuruhan Ganesan

We propose a framework for the low-energy realization of supersymmetry which is very predictive, but differs radically in its phenomenological implications from the supersymmetric Standard Model (minimal or otherwise). The proposal consists…

High Energy Physics - Phenomenology · Physics 2008-11-26 C. P. Burgess , J. Matias , F. Quevedo

For a general dyadic grid, we give a Calder\'{o}n-Zygmund type decomposition, which is the principle fact about the multilinear maximal function $\mathfrak{M}$ on the upper half-spaces. Using the decomposition, we study the boundedness of…

Analysis of PDEs · Mathematics 2018-08-28 Wei Chen , Chunxiang Zhu

The definition of weighted distance measure involves weights. The paper proposes a weighted distance measure without the help of weights. Here, weights are intrinsically added to the measure, and for this, the concept of metric space is…

Metric Geometry · Mathematics 2023-12-20 Q. M. Danish Lohani , Ashutosh Tiwari , Mohd Shoaib Khan

An oblivious subspace embedding (OSE), characterized by parameters $m,n,d,\epsilon,\delta$, is a random matrix $\Pi\in \mathbb{R}^{m\times n}$ such that for any $d$-dimensional subspace $T\subseteq \mathbb{R}^n$, $\Pr_\Pi[\forall x\in T,…

Data Structures and Algorithms · Computer Science 2023-07-14 Yi Li , Mingmou Liu

We show that if a compact set $E\subset \mathbb{R}^d$ has Hausdorff dimension larger than $\frac{d}{2}+\frac{1}{4}-\frac{1}{8d+4}$, where $d\geq 3$, then there is a point $x\in E$ such that the pinned distance set $\Delta_x(E)$ has positive…

Classical Analysis and ODEs · Mathematics 2024-10-23 Xiumin Du , Yumeng Ou , Kevin Ren , Ruixiang Zhang

In the context of spatial logics and spatial model checking for polyhedral models -- mathematical basis for visualisations in continuous space -- we propose a weakening of simplicial bisimilarity. We additionally propose a corresponding…

Logic in Computer Science · Computer Science 2024-04-19 Nick Bezhanishvili , Vincenzo Ciancia , David Gabelaia , Mamuka Jibladze , Diego Latella , Mieke Massink , Erik P. de Vink

We consider four-dimensional, Riemannian metrics for which one or other of the self-dual or anti-self-dual Weyl tensors is type-D and which satisfy the Einstein-Maxwell equations with the corresponding Maxwell field aligned with the type-D…

General Relativity and Quantum Cosmology · Physics 2024-10-18 Paul Tod

Erd\H{o}s' unit distance problem and Erd\H{o}s' distinct distances problem are among the most classical and well-known open problems in discrete mathematics. They ask for the maximum number of unit distances, or the minimum number of…

Combinatorics · Mathematics 2024-11-08 Noga Alon , Matija Bucić , Lisa Sauermann

We show that compact Riemannian manifolds, regarded as metric spaces with their global geodesic distance, cannot contain a number of rigid structures such as (a) arbitrarily large regular simplices or (b) arbitrarily long sequences of…

Metric Geometry · Mathematics 2021-01-06 Alexandru Chirvasitu
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