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相关论文: Historic iteration with aleph_epsilon-support

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We construct an algebra of dimension $2^{\aleph_0}$ consisting only of functions which in no point possess a finite one-sided derivative. We further show that some well known nowhere differentiable functions generate algebras, which contain…

经典分析与常微分方程 · 数学 2023-07-31 Jan-Christoph Schlage-Puchta

The magnitude of metric spaces does not appear to possess a simple, convenient continuity property, and previous studies have presented affirmative results under additional constraints or weaker notions, as well as counterexamples. In this…

度量几何 · 数学 2026-01-30 Byungchang So

The purpose of this note is to explain what is "analytical history", a modular and testable analysis of historical events introduced in a book published in 2002 (Roehner and Syme 2002). Broadly speaking, it is a comparative methodology for…

物理学史与哲学 · 物理学 2017-02-13 Bertrand M. Roehner

For each value of $p$ such that $0<p<1$, we give a specific example of two functions in the Hardy space $H^p$ and in the Bergman space $A^p$ that do not satisfy the triangle inequality. For Hardy spaces, this provides a much simpler proof…

复变函数 · 数学 2024-08-05 Iván Jiménez , Dragan Vukotić

We study QCD axion or cosmological axion-like particles (ALPs) in a model inspired by the recent interest in 4-dimensional clockwork models, with the global symmetry being accidentally enforced by a gauge abelian quiver with scalar…

高能物理 - 唯象学 · 物理学 2019-01-21 Quentin Bonnefoy , Emilian Dudas , Stefan Pokorski

We construct a non-free but aleph_1-separable, torsion-free abelian group G with a pure free subgroup B such that all subgroups of G disjoint from B are free and such that G/B is divisible. This answers a question of Irwin and shows that a…

逻辑 · 数学 2007-11-21 Andreas Blass , Saharon Shelah

Cosmic birefringence is predicted if an axion-like particle (ALP) moves after the recombination. We show that this naturally happens if the ALP is coupled to the dark matter density because it then acquires a large effective mass after the…

高能物理 - 唯象学 · 物理学 2021-11-10 Shota Nakagawa , Fuminobu Takahashi , Masaki Yamada

This paper is a serious attempt at reconciling quantum and classical mechanics through the concept of dynamic space and the acceptance of non-zero Ricci tensor for vacuum. Starting with scalar particles, the paper shows that with those two…

综合物理 · 物理学 2007-05-23 Jose B. Almeida

In 1988, Sibe Marde\v{s}i\'{c} and Andrei Prasolov isolated an inverse system $\mathbf{A}$ with the property that the additivity of strong homology on any class of spaces which includes the closed subsets of Euclidean space would entail…

逻辑 · 数学 2021-07-01 Jeffrey Bergfalk , Chris Lambie-Hanson

The late universe contains a wealth of information about fundamental physics and gravity, wrapped up in non-Gaussian fields. To make use of as much information as possible it is necessary to go beyond two-point statistics. Rather than going…

宇宙学与河外天体物理 · 物理学 2022-09-08 Alex Gough , Cora Uhlemann

We continue here [She88] but we do not rely on it. The motivation was a conjecture of Galvin stating that 2^{omega} >= omega_2 + omega_2-> [omega_1]^{n}_{h(n)} is consistent for a suitable h: omega-> omega. In section 5 we disprove this and…

逻辑 · 数学 2024-01-30 Saharon Shelah

It has generally been thought that in perturbed Friedmann-Lemaitre-Robertson-Walker models of the Universe, global topology should not have any feedback effects on dynamics. However, a weak-field limit heuristical argument, assuming a…

宇宙学与河外天体物理 · 物理学 2014-11-20 Boudewijn F. Roukema

This paper discusses, certain algebraic, analytic, and topological results on partial iterated function systems($IFS_p$'s). Also, the article proves the Collage theorem for partial iterated function systems. Further, it provides a method to…

动力系统 · 数学 2022-12-09 Praveen M , Sunil Mathew

In the multiverse, the universes can be created in entangled pairs with spacetimes that are both expanding in terms of the time variables experienced by internal observers in their particle physics experiments. The time variables of the two…

广义相对论与量子宇宙学 · 物理学 2017-06-21 Salvador J. Robles-Perez

Starting from the assumption that the present accelerated expansion of the Universe is driven by a chameleon scalar field, the function describing a direct coupling between the matter content of the Universe and the scalar field is derived…

太阳与恒星天体物理 · 物理学 2012-09-21 Vladimir Folomeev

We construct a weakly compact convex subset of $\ell^2$ with nonempty interior that has an isolated maximal element, with respect to the lattice order $\ell _+^2$. Moreover, the maximal point cannot be supported by any strictly positive…

泛函分析 · 数学 2024-07-19 Aris Daniilidis , Carlo de Bernardi , Enrico Miglierina

We derive, in order of magnitude, the observed astrophysical and cosmological scales in the Universe, from neutron stars to superclusters of galaxies, up to, asymptotically, the observed radius of the Universe. This result is obtained by…

天体物理学 · 物理学 2007-05-23 S. Capozziello , S. De Martino , S. De Siena , F. Guerra , F. Illuminati

To characterize the asymptotic behavior of fixed-point iterations of non-expansive operators with no fixed points, Bauschke et al. [Fixed Point Theory Appl. (2016)] recently studied cosmic convergence and conjectured that cosmic convergence…

最优化与控制 · 数学 2018-06-06 Ernest K. Ryu

(Abridged) Galaxies are observed to be simple systems but the standard model of cosmology (SMoC) implies a haphazard merger history driven by dynamical friction on dark matter halos. The SMoC is tested here with the results that the dual…

星系天体物理 · 物理学 2015-02-11 Pavel Kroupa

Starting from infinitely many supercompact cardinals, we force a model of ZFC where $\aleph_{\omega^2+1}$ satisfies simultaneously a strong principle of reflection, called $\Delta$-reflection, and a version of the square principle, denoted…

逻辑 · 数学 2016-02-04 Laura Fontanella , Yair Hayut