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According to the von Laue condition, the volume integral of the proper pressure inside isolated particles with a fixed structure and finite mass vanishes in the Minkowski limit of general relativity. In this work, we consider a simple…

广义相对论与量子宇宙学 · 物理学 2025-05-05 S. R. Pinto , P. P. Avelino

In the Hausdorff Voronoi diagram of a family of \emph{clusters of points} in the plane, the distance between a point $t$ and a cluster $P$ is measured as the maximum distance between $t$ and any point in $P$, and the diagram is defined in a…

计算几何 · 计算机科学 2016-03-08 Panagiotis Cheilaris , Elena Khramtcova , Stefan Langerman , Evanthia Papadopoulou

Two different versions of an optical theorem for a scattering body embedded inside a lossy background medium are derived in this paper. The corresponding fundamental upper bounds on absorption are then obtained in closed form by elementary…

光学 · 物理学 2020-01-08 Yevhen Ivanenko , Mats Gustafsson , Sven Nordebo

The famous Kepler conjecture has a less spectacular, two-dimensional equivalent: The theorem of Thue states that the densest circle packing in the Euclidean plane has a hexagonal structure. A common proof uses Voronoi cells and analyzes…

历史与综述 · 数学 2019-05-16 Max Leppmeier

In this study the Voronoi interpolation is used to interpolate a set of points drawn from a topological space with higher homology groups on its filtration. The technique is based on Voronoi tessellation, which induces a natural dual map to…

计算几何 · 计算机科学 2026-03-24 Luciano Melodia , Richard Lenz

For the analysis of systems consisting of small, regular objects, the methods of mathematical morphology applied to images of these systems are well-suited. One of these methods is the use of Voronoi polygons. It was found that the Voronoi…

计算几何 · 计算机科学 2011-05-24 M. Montserrat Alonso Ferrero

This paper presents the Voronoi diagram-based evolutionary algorithm (VorEAl). VorEAl partitions input space in abnormal/normal subsets using Voronoi diagrams. Diagrams are evolved using a multi-objective bio-inspired approach in order to…

人工智能 · 计算机科学 2016-10-28 Marti Luis , Fansi-Tchango Arsene , Navarro Laurent , Marc Schoenauer

Spatial statistical analysis of multivariate volumetric data can be challenging due to scale, complexity, and occlusion. Advances in topological segmentation, feature extraction, and statistical summarization have helped overcome the…

统计方法学 · 统计学 2022-08-16 Tyson Neuroth , Martin Rieth , Konduri Aditya , Myoungkyu Lee , Jacqueline H Chen , Kwan-Liu Ma

In this paper, we provide an $O(n \mathrm{polylog} n)$ bound on the expected complexity of the randomly weighted Voronoi diagram of a set of $n$ sites in the plane, where the sites can be either points, interior-disjoint convex sets, or…

计算几何 · 计算机科学 2015-03-23 Sariel Har-Peled , Benjamin Raichel

Polyhedral meshes are increasingly becoming an attractive option with particular advantages over traditional meshes for certain applications. What has been missing is a robust polyhedral meshing algorithm that can handle broad classes of…

Perturbed lattices provide simple models for studying many physical systems. In this paper we study the distribution of Voronoi chains, blocks, and clusters with prescribed combinatorial features in the perturbed square lattice,…

统计力学 · 物理学 2020-10-27 Emanuel A. Lazar , Amir Shoan

In this paper we study volumes of moduli spaces of hyperbolic surfaces with geodesic, cusp and cone boundary components. We compute the volumes in some new cases, in particular when there exists a large cone angle. This allows us to give…

代数几何 · 数学 2025-06-18 Lukas Anagnostou , Paul Norbury

In this paper, we construct an algorithm for determining whether a given tessellation on a sphere is a spherical Laguerre Voronoi diagram or not. For spherical Laguerre tessellations, not only the locations of the Voronoi generators, but…

计算几何 · 计算机科学 2017-05-12 Supanut Chaidee , Kokichi Sugihara

We consider the inverse problem of determining the possible presence of an inclusion in a thin plate by boundary measurements. The plate is made by non-homogeneous linearly elastic material belonging to a general class of anisotropy. The…

偏微分方程分析 · 数学 2011-09-16 Antonino Morassi , Edi Rosset , Sergio Vessella

We have performed direct numerical simulation of turbulent open channel flow over a smooth horizontal wall in the presence of finite-size, heavy particles. The spherical particles have a diameter of approximately 7 wall units, a density of…

流体动力学 · 物理学 2015-03-13 Aman G. Kidanemariam , Clemens Chan-Braun , Todor Doychev , Markus Uhlmann

It is shown that linear polarization data can be used to constrain the composition (normal or pair plasma) of pc-scale extragalactic jets. A simple criterion, based on synchrotron and Faraday depolarization properties, is established. It…

天体物理学 · 物理学 2016-08-30 Didier Fraix-Burnet

We introduce a new method for stacking voids and deriving their profile that greatly increases the potential of voids as a tool for precision cosmology. Given that voids are highly non-spherical and have most of their mass at their edge,…

宇宙学与河外天体物理 · 物理学 2016-05-17 Marius Cautun , Yan-Chuan Cai , Carlos S. Frenk

In this paper, we study a partially overdetermined mixed boundary value problem in a half ball. We prove that a domain in which this partially overdetermined problem admits a solution if and only if the domain is a spherical cap…

偏微分方程分析 · 数学 2019-08-08 Jinyu Guo , Chao Xia

Voronoi constellations (VCs) are finite sets of vectors of a coding lattice enclosed by the translated Voronoi region of a shaping lattice, which is a sublattice of the coding lattice. In conventional VCs, the shaping lattice is a scaled-up…

信息论 · 计算机科学 2024-01-25 S. Li , A. Mirani , M. Karlsson , E. Agrell

Shephard (Canad. J. Math. 26: 302-321, 1974) proved a decomposition theorem for zonotopes yielding a simple formula for their volume. In this note we prove a generalization of this theorem yielding similar formulas for their intrinsic…

度量几何 · 数学 2023-01-24 Antal Joós , Zsolt Lángi