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We discuss the multipolar expansion of the electromagnetic field with an emphasis on the radiated field. We investigate if the employment of Jefimenko's equations brings a new insight into the calculation of the radiation field. We show…

经典物理 · 物理学 2013-05-29 C. Vrejoiu , R. Zus

We present an elementary treatment of the Optional Decomposition Theorem for continuous semimartingales and general filtrations. This treatment does not assume the existence of equivalent local martingale measure(s), only that of strictly…

概率论 · 数学 2015-02-05 Ioannis Karatzas , Constantinos Kardaras

This paper is a continuation of Arai's paper on derivability conditions for Rosser provability predicates. We investigate the limitations of the second incompleteness theorem by constructing three different Rosser provability predicates…

逻辑 · 数学 2019-08-22 Taishi Kurahashi

We present a general theory of quasiprobability distributions on phase spaces of quantum systems whose dynamical symmetry groups are (finite-dimensional) Lie groups. The family of distributions on a phase space is postulated to satisfy the…

量子物理 · 物理学 2009-10-30 C. Brif , A. Mann

The paper extends Birkhoff's theorem on doubly stochastic matrices to some countable families of discrete probability spaces with nonempty intersections. We join every two elements lying in the same probability space by an edge and…

组合数学 · 数学 2007-05-23 Y. Safarov

We study multifractal decompositions based on Birkhoff averages for sequences of functions belonging to certain classes of symbolically continuous functions. We do this for an expanding interval map with countably many branches, which we…

动力系统 · 数学 2023-05-15 Tom Rush

Entropic uncertainty relations, based on sums of entropies of probability distributions arising from different measurements on a given pure state, can be seen as a generalization of the Heisenberg uncertainty relation that is in many cases…

量子物理 · 物理学 2007-05-23 Adam Azarchs

In this work, we study convergence in probability and almost sure convergence for weighted partial sums of random variables that are related to the class of generalized Oppenheim expansions. It is worth noting that the random variables…

概率论 · 数学 2022-07-21 Rita Giuliano , Milto Hadjikyriakou

A possibility to represent the standard model of fundamental particles covariant derivatives by means of approximate generalized fractional Riemann-Liouville derivatives of multifractal time and space model is shown.

高能物理 - 理论 · 物理学 2007-05-23 L. Ya. Kobelev

We construct asymptotic expansions for the normalised incomplete gamma function $Q(a,z)=\Gamma(a,z)/\Gamma(a)$ that are valid in the transition regions, including the case $z\approx a$, and have simple polynomial coefficients. For Bessel…

经典分析与常微分方程 · 数学 2019-03-26 Gergő Nemes , Adri B. Olde Daalhuis

We informally review the construction of spacetime geometries with multifractal and, more generally, multiscale properties. Based on fractional calculus, these continuous spacetimes have their dimension changing with the scale; they display…

高能物理 - 理论 · 物理学 2012-10-10 Gianluca Calcagni

The frame of classical probability theory can be generalized by enlarging the usual family of random variables in order to encompass nondeterministic ones: this leads to a frame in which two kinds of correlations emerge: the classical…

量子物理 · 物理学 2007-05-23 E. G. Beltrametti , S. Bugajski

This paper reviews work, largely due to W. Simon and the author, on multipole theory of static spacetimes. The main purpose is to make this work, which lies at the interface of potential theory, conformal geometry and general relativity,…

广义相对论与量子宇宙学 · 物理学 2007-05-23 Robert Beig

Motivated by the problem of finding finite versions of classical incompleteness theorems, we present some conjectures that go beyond ${\bf NP\neq co NP}$. These conjectures formally connect computational complexity with the difficulty of…

逻辑 · 数学 2017-05-22 Pavel Pudlak

We consider two models (A and B) which can describe both two dimensional fragmentation and stochastic fractals. Model A exhibits multifractality on a unique support when describing a fragmentation process and on one of infinitely many…

凝聚态物理 · 物理学 2009-10-28 M K Hassan , G J Rodgers

In quantum physics, the theoretical study of unbound many-body systems is typically quite complex -- owing to the combination of their large spatial extension and the so-called {\it curse of dimensionality}. Often, such systems are studied…

量子物理 · 物理学 2021-02-03 Sølve Selstø

This is the first of two papers that introduce a deformation theoretic framework to explain and broaden a link between homotopy algebra and probability theory. In this paper, cumulants are proved to coincide with morphisms of homotopy…

概率论 · 数学 2013-10-15 Gabriel C. Drummond-Cole , Jae-Suk Park , John Terilla

This article is devoted to the study of certain models for phase transitions involving nonlocal energies. A first part is concerned with to the asymptotic analysis of a system of fractional elliptic equations of Allen-Cahn type as a…

偏微分方程分析 · 数学 2025-06-26 Thomas Gabard , Vincent Millot

This is an up-to-date introduction to, and overview of, marginal likelihood computation for model selection and hypothesis testing. Computing normalizing constants of probability models (or ratio of constants) is a fundamental issue in many…

统计计算 · 统计学 2023-02-13 Fernando Llorente , Luca Martino , David Delgado , Javier Lopez-Santiago

When applying the classical Stone-Weierstrass common version in Probability Theory for example, and in other fields as well, problems may arise if all points of the compact set are not separated. A solution may consist in going back to the…

泛函分析 · 数学 2019-05-10 Gane Samb Lo