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What Can We Learn from Entanglement and Quantum Tomography?

open access: yesPhysics, 2022
Entanglement has become a hot topic in nuclear and particle physics, although many physicists are not sure they know what it means. We maintain that an era of understanding and using quantum mechanics on a dramatically new basis has arrived.
John P. Ralston
doaj   +1 more source

Connection between closeness of classical orbits and the factorization of radial Schr\"{o}dinger equation

open access: yes, 1998
It was shown that the Runge-Lenz vector for a hydrogen atom is equivalent to the raising and lowering operators derived from the factorization of radial Schr\"{o}dinger equation. Similar situation exists for an isotropic harmonic oscillator.
Huo, Wu-jun, Liu, Yu-feng, Zeng, Jinyan
core   +1 more source

Factorization of Hausdorff Operators

open access: yesAxioms
Throughout this study, we will gain a deeper understanding of Hausdorff operators that are commonly used in operator theory. The Hausdorff matrices Gamma, Cesàro, and Hölder are factorized here to derive novel inequalities.
Hadi Roopaei
doaj   +1 more source

A method of defining a class of linear conjugation problems for two-dimensional vector with closed-form solutions

open access: yesУчёные записки Казанского университета: Серия Физико-математические науки
The problem of linear conjugation for a two-dimensional piecewise analytic vector was reduced to an equivalent problem of fractional linear conjugation, and a connection between their solutions was established.
S. N. Kiyasov
doaj   +1 more source

Factorization and infrared properties of non-perturbative contributions to DIS structure functions

open access: yes, 2011
In this paper we present a new derivation of the QCD factorization. We deduce the k_T- and collinear factorizations for the DIS structure functions by consecutive reductions of a more general theoretical construction.
A. Bassetto   +52 more
core   +1 more source

G-Pre: A Graph-Theory-Based Matrix Preconditioning Algorithm for Finite Element Simulation Solutions

open access: yesApplied Sciences
In finite element simulation and analysis, increasing simulation scales place high demands on the preconditioning and solution process of linear matrices.
Min Chen   +5 more
doaj   +1 more source

Characterization of prime and composite numbers using the notion of successive sum of integers and the consequence in primality testing [PDF]

open access: yesNotes on Number Theory and Discrete Mathematics
In this paper, we give a characterization of primes and composite natural numbers using the notion of the sum of successive natural numbers. We prove essentially that an odd natural number N≥3 is prime if and only if the unique decomposition of N as a ...
Fateh Mustapha Dehmeche   +2 more
doaj   +1 more source

Can EMG-Derived Upper Limb Muscle Synergies Serve as Markers for Post-Stroke Motor Assessment and Prediction of Rehabilitation Outcome?

open access: yesSensors
EMG-derived muscle synergy, as a representation of neuromotor modules utilized for motor control, has been proposed as a biomarker for stroke rehabilitation.
Fung Ting Kwok   +6 more
doaj   +1 more source

Factorizations in preduals associated to ρ-contractions

open access: yesAnnals of the West University of Timisoara: Mathematics and Computer Science, 2015
We establish directly factorization results for classes of ρ-contractions, corresponding to those obtained for certain classes of contractions. As an example of result which is not an immediate consequence of the fact that any ρ-contraction is similar to
Chevreau Bernard, Crăciunescu Aurelian
doaj   +1 more source

Generalized U-factorization in Commutative Rings with Zero-Divisors

open access: yes, 2013
Recently substantial progress has been made on generalized factorization techniques in integral domains, in particular $\tau$-factorization. There has also been advances made in investigating factorization in commutative rings with zero-divisors.
Mooney, Christopher Park
core   +1 more source

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