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相关论文: Two Essays on the Archimedean versus Non-Archimede…

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We present a characterization of the completeness of the field of real numbers in the form of a \emph{collection of ten equivalent statements} borrowed from algebra, real analysis, general topology and non-standard analysis. We also discuss…

历史与综述 · 数学 2011-09-12 James F. Hall , Todor D. Todorov

Galilean Relativity and Einstein's Special and General Relativity showed that the Laws of Physics go deeper than their representations in any given reference frame. Thus covariance, or independence of Laws of Physics with respect to changes…

综合物理 · 物理学 2007-05-23 Elemer E Rosinger

The proper Euclidean geometry is considered to be metric space and described in terms of only metric and finite metric subspaces (sigma-immanent description). Constructing the geometry, one does not use topology and topological properties.…

度量几何 · 数学 2007-05-23 Yuri A. Rylov

Using only the principle of relativity and Euclidean geometry we show in this pedagogical article that the square of proper time or length in a two-dimensional spacetime diagram is proportional to the Euclidean area of the corresponding…

广义相对论与量子宇宙学 · 物理学 2009-11-10 Dieter Brill , Ted Jacobson

Let us consider a reference frame for which the pseudo-Euclidean geometry is valid (prefered frame). The equations of Maxwell in empty space have a simple form and are derived from a Lagrangian. In a medium magnetic permeability and…

综合物理 · 物理学 2010-06-22 Walter Petry

Physical geometry studies mutual disposition of geometrical objects and points in space, or space-time, which is described by the distance function d, or by the world function \sigma =d^{2}/2. One suggests a new general method of the…

综合物理 · 物理学 2007-05-23 Yuri A. Rylov

We analyse the axioms of Euclidean geometry according to standard object-oriented software development methodology. We find a perfect match: the main undefined concepts of the axioms translate to object classes. The result is a suite of C++…

计算几何 · 计算机科学 2009-09-29 M. H. van Emden , B. Moa

One obtains a Maxwell-like structure of gravitation by applying the weak-field approximation to the well accepted theory of general relativity or by extending Newton's laws to time-dependent systems. This splits gravity in two parts, namely…

广义相对论与量子宇宙学 · 物理学 2007-05-23 M. Tajmar , C. J. de Matos

Although cosmic expansion at very small distances is usually dismissed as entirely inconsequential, it appears that these extraordinarily small effects may in fact have a real and significant influence on our world. Calculations suggest…

综合物理 · 物理学 2015-06-26 C. L. Herzenberg

Wigner's "unreasonable effectiveness of mathematics" in physics can be understood as a reflection of a deep and unexpected unity between the fundamental structures of mathematics and of physics. Some of the history of evidence for this is…

物理学史与哲学 · 物理学 2015-06-26 Peter Woit

The question of the nature of space around us has occupied thinkers since the dawn of humanity, with scientists and philosophers today implicitly assuming that space is something that exists objectively. Here we show that this does not have…

人工智能 · 计算机科学 2013-08-12 Alexander V. Terekhov , J. Kevin O'Regan

I present a formal ontological theory where the basic building blocks of the world can be either things or events. In any case, the result is a Parmenidean worldview where change is not a global property. What we understand by change…

物理学史与哲学 · 物理学 2012-05-07 Gustavo E. Romero

In the field theories in physics, any particular region of the presumed space-time continuum and all interactions between elementary objects therein can be objectively measured and/or accounted for mathematically. Since this does not apply…

神经元与认知 · 定量生物学 2022-01-19 Birgitta Dresp-Langley

In a previous effort [arXiv:1708.05492] we have created a framework that explains why topological structures naturally arise within a scientific theory; namely, they capture the requirements of experimental verification. This is…

综合物理 · 物理学 2020-06-25 Gabriele Carcassi , Christine A. Aidala

Spacetime is conventionally viewed as a stage on which actors, in the form of fields, move. Here, we explore what may lie beyond this picture. The starting point is the observation that quantum fluctuations of fields are the more strongly…

广义相对论与量子宇宙学 · 物理学 2021-10-19 Achim Kempf

The centuries-long practice of the teaching turned mechanics into an academic construct detached from its underlying science, the physics of macroscopic bodies. In particular, the regularities that delineate the scope of validity of…

经典物理 · 物理学 2015-06-15 Serge A. Wagner

The geometric calculus based on Clifford algebra is a very useful tool for geometry and physics. It describes a geometric structure which is much richer than the ordinary geometry of spacetime. A Clifford manifold (C-space) consists not…

广义相对论与量子宇宙学 · 物理学 2011-08-17 Matej Pavsic

Since the early days of the theory of electromagnetism and of gravity the idea of space, then space-time, as a sort of physical continuum hovered the scientific community. Actually general relativity shows the strong similarity that exists…

广义相对论与量子宇宙学 · 物理学 2014-11-20 Angelo Tartaglia , Ninfa Radicella

This paper shows how to write Maxwell's Equations in Hamilton's Quaternions. The fact that the quaternion product is non-commuting leads to distinct left and right derivatives which must both be included in the theory. A new field component…

数学物理 · 物理学 2007-05-23 Peter Michael Jack

The tubular geometry (T-geometry) is a generalization of the proper Euclidean geometry, founded on the property of sigma-immanence. The proper Euclidean geometry can be described completely in terms of the world function $\sigma =\rho…

综合物理 · 物理学 2007-05-23 Yuri A. Rylov