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相关论文: Inexistence of Zeeman's fine topology

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We work on the family of topologies for the Minkowski manifold M. We partially order this family by inclusion to form the lattice \Sigma(M), and focus on the sublattice Z of topologies that induce the Euclidean metric space on every time…

数学物理 · 物理学 2012-01-24 Norberto Sainz

The class of Zeeman topologies on spacetimes in the frame of relativity theory is considered to be of powerful intuitive justification, satisfying a sequence of properties with physical meaning, such as the group of homeomorphisms under…

数学物理 · 物理学 2018-08-21 Kyriakos Papadopoulos , Basil K. Papadopoulos

E. C. Zeeman [1] has criticized the fact that in all articles and books until that moment (1967) the topology employed to work with the Minkowski space was the Euclidean one. He has proposed a new topology, which was generalized for more…

数学物理 · 物理学 2007-05-23 I. Struchiner , M. Rosa

In this article we first observe that the Path topology of Hawking, King and MacCarthy is an analogue, in curved spacetimes, of a topology that was suggested by Zeeman as an alternative topology to his so-called Fine topology in Minkowski…

数学物理 · 物理学 2019-04-16 Kyriakos Papadopoulos , Basil K. Papadopoulos

A constructive and straightforward proof of the existence of the Zeeman topology is provided, contradicting a fallacious claim contained in the paper "Does Zeeman's Fine Topology Exist?" available at arXiv:1003.3703v1.

数学物理 · 物理学 2011-03-15 Giacomo Dossena

The order horismos induces the Zeeman $Z$ topology, which is coarser than the Fine Zeeman Topology $F$. The causal curves in a spacetime under $Z$ are piecewise null. $F$ is considered to be the most physical topology in a spacetime…

广义相对论与量子宇宙学 · 物理学 2017-09-05 Kyriakos Papadopoulos

We discuss the topological nature of the boundary spacetime, the conformal infinity of the ambient cosmological metric. Due to the existence of a homothetic group, the bounding spacetime must be equipped not with the usual Euclidean metric…

高能物理 - 理论 · 物理学 2015-08-25 Ignatios Antoniadis , Spiros Cotsakis

We prove that there does not exist global-in-time axisymmetric solutions to the time-like minimal submanifold system in Minkowski space. We further analyze the limiting geometry as the maximal time of existence is approached.

偏微分方程分析 · 数学 2018-02-19 Willie Wai-Yeung Wong

We report two theoretical discoveries for $\mathbb{Z}_2$-topological metals and semimetals. It is shown first that any dimensional $\mathbb{Z}_2$ Fermi surface is topologically equivalent to a Fermi point. Then the famous conventional no-go…

介观与纳米尺度物理 · 物理学 2016-01-07 Y. X. Zhao , Z. D. Wang

Estimation algebras have been extensively studied in Euclidean space, where finite-dimensional estimation algebras form the foundation of the Kalman and Benes filters, and have contributed to the discovery of many other finite-dimensional…

最优化与控制 · 数学 2024-10-14 Jiayi Kang , Andrew Salmon , Stephen Shing-Toung Yau

The group of homothetic symmetries in the conformal infinity (the $4$-dimensional "ambient boundary") of a $5$-dimensional spacetime restricts the choice of topology to a topology under which the group of homeomorphisms of a spacetime…

综合物理 · 物理学 2019-04-05 Kyriakos Papadopoulos , Nazli Kurt , Basil K. Papadopoulos

In a 1967 paper, Zeeman proposed a new topology for Minkowski spacetime, physically motivated but much more complicated than the standard one. Here a detailed study is given of some properties of the Zeeman topology which had not been…

数学物理 · 物理学 2007-11-13 Giacomo Dossena

We study extensions of Wermer's maximality theorem to several complex variables. We exhibit various smoothly embedded manifolds in complex Euclidean space whose hulls are non-trivial but contain no analytic disks. We answer a question posed…

复变函数 · 数学 2017-07-05 Alexander J. Izzo , Håkan Samuelsson Kalm , Erlend Fornæss Wold

Let $\otimes$ be the map which classifies the tensor product of two line bundles, an extension of this map to the space of all codimension 1 algebraic cycles is constructed. It is proved that this extension cannot exist in codimension…

代数拓扑 · 数学 2008-11-27 Luis E. Lopez

It is consistent with ZF set theory that the Euclidean topology on the real line is not sequential, yet every infinite set of reals contains a countably infinite subset. This answers a question of Gutierres.

逻辑 · 数学 2021-03-19 Jindrich Zapletal

In the Letter, Xu et al. reported that edge modes disappear in the expanded structure of Wu-Hu model characterized by $\mathbb{Z}_2$ topological index, while appear in the trivial shrunken structure, when the edge cuts through the hexagonal…

光学 · 物理学 2024-08-02 Xing-Xiang Wang , Toshikaze Kariyado , Xiao Hu

Scalars and fermions can arise as Goldstone modes of non-linearly realised extensions of the Poincare group (with important implications for the soft limits of such theories): the Dirac-Born-Infeld scalar realises a higher-dimensional…

高能物理 - 理论 · 物理学 2018-09-12 Remko Klein , Emanuel Malek , Diederik Roest , David Stefanyszyn

In this note we prove a nonexistence result for proper biharmonic maps from complete non-compact Riemannian manifolds of dimension \(m=\dim M\geq 3\) with infinite volume that admit an Euclidean type Sobolev inequality into general…

微分几何 · 数学 2018-07-16 Volker Branding , Yong Luo

We study the existence of Riemannian metrics with zero topological entropy on a closed manifold M with infinite fundamental group. We show that such a metric does not exist if there is a finite simply connected CW complex which maps to M in…

微分几何 · 数学 2007-05-23 Gabriel P. Paternain , Jimmy Petean

$n$-scales are a generalization of time-scales that has been put forward to unify continuous and discrete analyses in higher dimensions. In this paper we investigate massive scalar field theory on a regular $n$-Scale. We have given the…

综合物理 · 物理学 2018-08-28 Furkan Semih Dündar , Metin Arik
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