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We define the structure constants of almost complex, almost symplectic and Riemannian structures on a local Lie group

微分几何 · 数学 2022-05-12 Ercüment H. Ortaçgil

For any prime number p and any positive real number {\alpha}, we construct a finitely generated group {\Gamma} with p-gradient equal to {\alpha}. This construction is used to show that there exist uncountably many pairwise non-commensurable…

群论 · 数学 2013-01-22 Nathaniel Pappas

A theory of 3-space explains the phenomenon of gravity as arising from the time-dependence and inhomogeneity of the differential flow of this 3-space. The emergent theory of gravity has two gravitational constants: G - Newton's constant,…

综合物理 · 物理学 2007-05-23 Reginald T. Cahill

The string number of self-maps arose in the context of algebraic entropy and it can be viewed as a kind of combinatorial entropy function. Later on its values for endomorphisms of abelian groups were calculated in full generality. We study…

群论 · 数学 2010-12-17 Anna Giordano Bruno , Simone Virili

Most quantum divergences derive their structure from classical f-divergences or Renyi-type constructions, a dependence that obscures several quantum geometric effects. We introduce a quantum relative-alpha-entropy that extends Umegaki's…

量子物理 · 物理学 2026-04-09 Sayantan Roy , Atin Gayen , Aditi Kar Gangopadhyay , Sugata Gangopadhyay

A Thomas-Fermi-Weizsaecker type theory is constructed, by means of which we are able to give a relatively simple proof of the stability of relativistic matter. Our procedure has the advantage over previous ones in that the critical value of…

凝聚态物理 · 物理学 2007-05-23 E. H. Lieb , M. Loss , H. Siedentop

Astrophysical observations suggest that the fine structure constant (alpha) may (or may not) be evolving over the cosmological time scale. This raises a much debated question: is alpha variation due to the variation of the speed of light…

高能物理 - 唯象学 · 物理学 2007-05-23 A. Yu. Ignatiev , B. J. Carson

The cosmological constant is normally introduced as an additional term entering the Einstein-Hilbert (EH) action. In this letter we demonstrate that instead, it appears naturally from the standard EH action as an invariant term emerging…

综合物理 · 物理学 2024-12-19 Ivan Arraut

By collecting both quantum and gravitational principles, a space-time uncertainty relation $(\delta t)(\delta r)^{3}\geqslant\pi r^{2}l_{p}^{2}$ is derived. It can be used to facilitate the discussion of several profound questions, such as…

高能物理 - 理论 · 物理学 2008-11-07 Yi-Xin Chen , Yong Xiao

An $\alpha$-parameter representation is derived for gauge field theories.It involves, relative to a scalar field theory, only constants and derivatives with respect to the $\alpha$-parameters. Simple rules are given to obtain the…

高能物理 - 理论 · 物理学 2009-10-31 Richard Hong Tuan

The observed value of the cosmological constant poses large theoretical problems. We find that topology of the Universe provides a natural source for it. Restricting dynamically an Einstein-Cartan gravity to General Relativity in our…

广义相对论与量子宇宙学 · 物理学 2020-06-16 M. Le Delliou , J. Lorca Espiro

The relativistic invariant zeta-function approach to computation of the vacuum energy contribution to cosmological constant is discussed. It is shown that this value is determined by the fourth power of the quantized field mass, while the…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Igor O. Cherednikov

Using a classical action associated to a point-particle in (1+1)-dimensions the classical string theory is derived. In connection with this result two aspects are clarified: First, the point particle in (1+1)-dimensions is not an ordinary…

广义相对论与量子宇宙学 · 物理学 2015-06-25 J. A. Nieto

This paper considers the question of the rate of convergence to ${\alpha}$- stable laws, using arguments based on the Zolotarev distance to prove bounds. We provide a rate of convergence to ${\alpha}$-stable random variable where 1 <…

概率论 · 数学 2017-12-27 Solym Mawaki Manou-Abi

The character of an irreducible admissible representation of a $p$-adic reductive group is known to be a constant function in some neighborhood of any regular semisimple element $\gamma$ in the group. Under certain mild restrictions on…

表示论 · 数学 2007-05-23 Jonathan Korman

Quantum groups and non-commutative spaces have been repeatedly utilized in approaches to quantum gravity. They provide a mathematically elegant cut-off, often interpreted as related to the Planck-scale quantum uncertainty in position. We…

广义相对论与量子宇宙学 · 物理学 2011-08-09 Eugenio Bianchi , Carlo Rovelli

We consider the one-parameter family of interval maps arising from generalized continued fraction expansions known as alpha-continued fractions. For such maps, we perform a numerical study of the behaviour of metric entropy as a function of…

动力系统 · 数学 2015-05-14 Carlo Carminati , Stefano Marmi , Alessandro Profeti , Giulio Tiozzo

The purpose of this paper is to describe the relation between the Legendre and the Lenstra constants. Indeed we show that they are equal whenever the Legendre constant exists; in particular, this holds for both Rosen continued fractions and…

数论 · 数学 2007-05-28 Hitoshi Nakada

The cosmological constant problem is turned around to argue for a new foundational physics postulate underlying a consistent quantum theory of gravity and matter, such as string theory. This postulate is a quantum equivalence principle…

高能物理 - 理论 · 物理学 2008-11-26 Vishnu Jejjala , Djordje Minic

We discuss the fundamemtal constants in the Standard Model of particle physics, in particular possible changes of these constants on the cosmological time scale. The Grand Unification of the observed strong, electromagnetic and weak…

高能物理 - 唯象学 · 物理学 2016-10-25 Harald Fritzsch