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Weighted Inequalities for a Superposition of the Copson Operator and the Hardy Operator

open access: yesJournal of Fourier Analysis and Applications, 2022
We study a three-weight inequality for the superposition of the Hardy operator and the Copson operator, namely \begin{equation*} \bigg(\int_a^b \bigg(\int_t^b \bigg(\int_a^s f(τ)^p v(τ) \,dτ\bigg)^\frac{q}{p} u(s) \,ds \bigg)^{\frac{r}{q}} w(t) \,dt \bigg)^{\frac{1}{r}} \leq C \int_a^b f(t)\,dt, \end{equation*} in which $(a,b)$ is any nontrivial ...
Amiran Gogatishvili   +2 more
exaly   +6 more sources

The superposition operator in the space of functions continuous and converging at infinity on the real half-axis

open access: yesAdvances in Nonlinear Analysis, 2019
We will consider the so-called superposition operator in the space CC(ℝ+) of real functions defined, continuous on the real half-axis ℝ+ and converging to finite limits at infinity.
Rzepka Beata, Ścibisz Justyna
doaj   +3 more sources

Superposition operator problems of Hölder-Lipschitz spaces

open access: yesDemonstratio Mathematica
Let ff be a function defined on the real line, and Tf{T}_{f} be the corresponding superposition operator which maps hh to Tf(h){T}_{f}\left(h), i.e., Tf(h)=f∘h{T}_{f}\left(h)=f\circ h. In this article, the sufficient and necessary conditions such that Tf{
Niu Yeli, Wang Heping
doaj   +3 more sources

Monotonicity properties of the superposition operator and their applications

open access: yesJournal of Mathematical Analysis and Applications, 2008
Q1
Józef Banas, Kishin Sadarangani
exaly   +4 more sources

Integral Superposition-Type Operators on Some Analytic Function Spaces

open access: yesJournal of Function Spaces, 2021
All entire functions which transform a class of holomorphic Zygmund-type spaces into weighted analytic Bloch space using the so-called n-generalized superposition operator are characterized in this paper.
A. El-Sayed Ahmed, S. Omran
doaj   +2 more sources

Collapsing a perfect superposition to a chosen quantum state without measurement. [PDF]

open access: yesPLoS ONE, 2014
Given a perfect superposition of [Formula: see text] states on a quantum system of [Formula: see text] qubits. We propose a fast quantum algorithm for collapsing the perfect superposition to a chosen quantum state [Formula: see text] without applying any
Ahmed Younes, Mahmoud Abdel-Aty
doaj   +2 more sources

Some inequalities and superposition operator in the space of regulated functions

open access: yesAdvances in Nonlinear Analysis, 2019
Some inequalities connected to measures of noncompactness in the space of regulated function R(J, E) were proved in the paper. The inequalities are analogous of well known estimations for Hausdorff measure and the space of continuous functions.
Olszowy Leszek, Zając Tomasz
doaj   +2 more sources

On the Lattice of $ES_I$-closed Classes of Multifunctions on Two-elements Set

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2021
The paper considers multifunctions on a two-element set with superposition and the equality predicate branching operator. The superposition operator is based on the intersection of sets. The main purpose of the work is to describe all closed classes with
V.I. Panteleyev, E. S. Taglasov
doaj   +1 more source

Transformations of superpositions by means of incoherent operations [PDF]

open access: yesScientific Reports, 2020
AbstractIn this paper we study how the coherence of a superposition of pure states is related with the coherence of its components. We consider two pure initial states and two pure final coherent states, such that the former ones cannot be transformed into the latter ones by means of incoherent transformations.
Losada, Marcelo   +3 more
openaire   +4 more sources

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