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The distribution of the deformations of elementary cells is studied in an abstract lattice constructed from the existence of the empty set. One combination rule determining oriented sequences with continuity of set-distance function in such…

综合物理 · 物理学 2007-05-23 Michel Bounias , Volodymyr Krasnoholovets

In some scientific fields, a scaling is able to modify the topology of an observed object. Our goal in the present work is to introduce a new formalism adapted to the mathematical representation of this kind of phenomenon. To this end, we…

几何拓扑 · 数学 2008-12-11 Guy Wallet

Conventional wisdom holds that any region of 3-space contains infinitely many points, and the Planck length scale determines the uncertainty in every measurement of distance between two separate points. Against such a backdrop, this…

综合物理 · 物理学 2023-08-25 Arkady Bolotin

The advent of high resolution imaging has made data on surface shape widespread. Methods for the analysis of shape based on landmarks are well established but high resolution data require a functional approach. The starting point is a…

计算机视觉与模式识别 · 计算机科学 2020-03-20 Stanislav Katina , Liberty Vittert , Adrian W. Bowman

The discovery of a biosphere on another planet would transform how we view ourselves, and our planet Earth, in relation to the rest of the cosmos. We now know Earth is one planet among eight circling our sun; our sun is part of a swirling…

Spatial statistics is an area of study devoted to the statistical analysis of data that have a spatial label associated with them. Geographers often refer to the "location information" associated with the "attribute information," whose…

统计方法学 · 统计学 2021-05-18 Noel Cressie , Matthew T. Moores

This article explores the overall geometric manner in which human beings make sense of the world around them by means of their physical theories; in particular, in what are nowadays called pregeometric pictures of Nature. In these, the…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Diego Meschini , Markku Lehto , Johanna Piilonen

Spatial dependency and spatial embedding are basic physical properties of many phenomena modeled by networks. The most indicated computational environment to deal with spatial information is to use Georeferenced Information System (GIS) and…

The large scale structure of the universe is a complex web of clusters, filaments, and voids. Its properties are informed by galaxy redshift surveys and measurements of peculiar velocities. Wiener Filter reconstructions recover…

宇宙学与河外天体物理 · 物理学 2015-06-16 Helene M. Courtois , Daniel Pomarede , R. Brent Tully , Yehuda Hoffman , Denis Courtois

Astrobiology is a scientific discipline that studies life in the Universe. We call it a discipline and not a science because some authors have cast doubts over its epistemological status by calling it 'a science without an object of study'.…

天体物理仪器与方法 · 物理学 2017-09-21 Juan Campos Quemada

The geometric foundations of General Relativity are revisited, with particular attention to its gauge invariance, as a key to understanding the true nature of spacetime. Beyond the common image of spacetime as a deformable 'fabric' filling…

广义相对论与量子宇宙学 · 物理学 2025-10-17 Jaume de Haro , Emilio Elizalde

The differential equations satisfied by the wavefunction coefficients of conformally coupled scalars in a power-law cosmology can be recast into an iterative differential system of basis functions. These functions can be encoded within…

高能物理 - 理论 · 物理学 2026-05-19 Ji-Yuan Ke , Ping He

Spatial confounding between the spatial random effects and fixed effects covariates has been recently discovered and showed that it may bring misleading interpretation to the model results. Solutions to alleviate this problem are based on…

统计方法学 · 统计学 2016-05-17 Marcos O. Prates , Erica C. Rodrigues , Renato M. Assunção

I describe the manifestation of the non-Euclidean geometry in the behavior of collective observables of some complex physical systems. Specifically, I consider the formation of equilibrium shapes of plants and statistics of sparse random…

软凝聚态物质 · 物理学 2017-05-30 Sergei Nechaev

Hyperbolic geometry is developed in a purely algebraic fashion from first principles, without a prior development of differential geometry. The natural connection with the geometry of Lorentz, Einstein and Minkowski comes from a projective…

度量几何 · 数学 2009-09-09 N. J. Wildberger

The context of this paper is the use of formal methods for topology-based geometric modelling. Topology-based geometric modelling deals with objects of various dimensions and shapes. Usually, objects are defined by a graph-based topological…

图形学 · 计算机科学 2011-02-15 Thomas Bellet , Agnès Arnould , Pascale Le Gall

Questions such as whether we live in a spatially finite universe, and what its shape and size may be, are among the fundamental open problems that high precision modern cosmology needs to resolve. These questions go beyond the scope of…

天体物理学 · 物理学 2007-05-23 M. J. Reboucas , G. I. Gomero

Shape dynamics is an alternative background-independent approach to classical dynamics that implements Leibnizian philosophy and Mach's Principles. It is a formulation of the dynamics of the universe in terms of the intrinsic and relational…

广义相对论与量子宇宙学 · 物理学 2022-01-21 Pooya Farokhi

Coordination geometries describe how the neighbours of a central particle are arranged around it. Such geometries can be thought to lie in an abstract topological space; a model of this space could provide a mathematical basis for…

数学物理 · 物理学 2023-06-28 John Çamkıran , Fabian Parsch , Glenn D. Hibbard

The theory of Physical Structures (TPS) was put forward by Professor Yu.I. Kulakov for the sake of classifying the laws of Physics. The history of the development of that theory is given in his monograph [1]. A physical structure is a…

数学物理 · 物理学 2019-04-16 G. G. Mikhailichenko , A. N. Borodin