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A compact space $K$ is Radon-Nikod\'{y}m if there is a lower semi-continuous metric fragmenting $K$. In this note, we show that, under $\diamondsuit (\mathrm{non}{\mathcal{M}})$, there is a Radon-Nikod\'{y}m compact space of weight…

Functional Analysis · Mathematics 2025-04-15 Arturo Martínez-Celis , Adam Morawski

Recently, the charge radius of the proton was extracted for the first time from muonic hydrogen. The value obtained is five standard deviations away from similar measurements of regular hydrogen. This talk discusses work done in…

High Energy Physics - Phenomenology · Physics 2015-05-30 Gil Paz

The motion of a system of particles under electromagnetic interaction is considered. Under the assumption that the force acting on an electric charge is given by the sum of the electromagnetic fields produced by any other charged particles…

General Physics · Physics 2007-05-23 O. Chavoya-Aceves

A simple proof for the Shannon coding theorem, using only the Markov inequality, is presented. The technique is useful for didactic purposes, since it does not require many preliminaries and the information density and mutual information…

Information Theory · Computer Science 2012-05-08 Yuval Lomnitz , Meir Feder

On compact Riemannian manifolds, we prove a decomposition theorem for arbitrarily bounded energy sequence of solutions of a singular elliptic equation.

Analysis of PDEs · Mathematics 2017-01-03 Youssef Maliki , Fatima Zohra Terki

A charge-monopole theory is derived from simple and self-evident postulates. Charges and monopoles take an analogous theoretical structure. It is proved that charges interact with free waves emitted from monopoles but not with the…

High Energy Physics - Theory · Physics 2008-11-26 E. Comay

We develop a Helmholtz-like theorem for differential forms in Euclidean space $E_{n}$ using a uniqueness theorem similar to the one for vector fields. We then apply it to Riemannian manifolds, $R_{n}$, which, by virtue of the…

General Mathematics · Mathematics 2014-12-02 Jose G. Vargas

This paper investigates Voevodsky's univalence axiom in intensional Martin-L\"of type theory. In particular, it looks at how univalence can be derived from simpler axioms. We first present some existing work, collected together from various…

Logic in Computer Science · Computer Science 2019-11-20 Ian Orton , Andrew M. Pitts

The evolution of a hadronic system after its chemical decomposition is described through a model that conserves the hadronic multiplicities to their values at chemical freeze-out. The state of the system is found as function of temperature…

High Energy Physics - Phenomenology · Physics 2007-05-23 A. S. Kapoyannis

A quantum expectation is a positive linear functional of norm one on a non-commutative probability space (i.e., a C*-algebra). For a given pair of quantum expectations $\mu$ and $\lambda$ on a non-commutative probability space $A$, we…

Operator Algebras · Mathematics 2025-07-15 Fouad Naderi

We use Herbrand's theorem to give a new proof that Euclid's parallel axiom is not derivable from the other axioms of first-order Euclidean geometry. Previous proofs involve constructing models of non-Euclidean geometry. This proof uses a…

Logic · Mathematics 2015-11-10 Michael Beeson , Pierre Boutry , Julien Narboux

Radar-holonomic congruences of wordlines are proposed as a weaker substitute for the too restrictive class of Born-rigid motions. The definition is expressed as a set of differential equations. Integrability conditions and Cauchy data are…

General Relativity and Quantum Cosmology · Physics 2017-11-22 J Llosa , A Molina , D Soler

The recently proposed Partition Theory (PT) [J.Phys.Chem.A 111, 2229 (2007)] is illustrated on a simple one-dimensional model of a heteronuclear diatomic molecule. It is shown that a sharp definition for the charge of molecular fragments…

Other Condensed Matter · Physics 2016-09-28 Morrel H. Cohen , Adam Wasserman , Roberto Car , Kieron Burke

We report in this survey some new results concerning noncommutative Chern characters: construction and the cases when they are exactly computed. The major result indicates some clear relation of these noncommutative objects and their…

Quantum Algebra · Mathematics 2007-05-23 Do Ngoc Diep

This paper is concerned with the derivation and properties of differential complexes arising from a variety of problems in differential equations, with applications in continuum mechanics, relativity, and other fields. We present a…

Numerical Analysis · Mathematics 2023-02-02 Douglas N. Arnold , Kaibo Hu

In this note we mainly study the fine Jordan-Chevalley decomposition: a refinement of the classical Jordan-Chevalley decomposition of a matrix and we pay a particular attention to the field of the coefficients of the matrix. Moreover we…

Rings and Algebras · Mathematics 2017-07-07 Alberto Dolcetti , Donato Pertici

Tomograms, a generalization of the Radon transform to arbitrary pairs of non-commuting operators, are positive bilinear transforms with a rigorous probabilistic interpretation which provide a full characterization of the signal and are…

Data Analysis, Statistics and Probability · Physics 2012-11-27 F. Briolle , V. I. Man'ko , B. Ricaud , R. Vilela Mendes

This article presents a clear proof of the Riemann Mapping Theorem via Riemann's method, uncompromised by any appeals to topological intuition.

Complex Variables · Mathematics 2016-12-14 Robert E. Greene , Kang-Tae Kim

We present a construction of the explicit Hodge decomposition for $\bar\partial$-equation on Riemann surfaces.

Complex Variables · Mathematics 2016-03-29 Gennadi M. Henkin , Peter L. Polyakov

Introducing $h$- and $h'$-deformations of ${\mathbb Z}_2$-graded (1+2)- and (2+1)-spaces, denoted by ${\mathbb A}_h^{1|2}$ and ${\mathbb A}_{h'}^{2|1}$, a two-parameter first order differential calculus, de Rham complex, on ${\mathbb…

Quantum Algebra · Mathematics 2021-03-31 Salih Celik