Results 31 to 40 of about 1,280,473 (359)

Multiplication from other operations [PDF]

open access: yesProceedings of the American Mathematical Society, 1971
Given the operations of subtraction and reciprocaltaking we show that the operation of multiplication is determined in any field. The amusing difference is that for characteristic 2 it is not given by a formula while for other characteristics, it is. The identity xy = ((x + y 2)-1 (x + y + 2)1)-' ((x-y-2)-1(x-y+ 2)y )' shows how multiplication of real ...
Kohn, S., Newman, D. J.
openaire   +1 more source

Compressions of Multiplication Operators and Their Characterizations [PDF]

open access: yesResults in Mathematics, 2020
AbstractDual truncated Toeplitz operators and other restrictions of the multiplication by the independent variable $$M_z$$ M z on the classical $$L^2$$ L 2 space on the unit circle are investigated. Commutators are calculated and commutativity is characterized.
M. Cristina Câmara   +3 more
openaire   +2 more sources

On Some Properties of Cowen-Douglas Class of Operators

open access: yesJournal of Function Spaces, 2018
We will consider multiplication operators on a Hilbert space of analytic functions on a domain Ω⊂C. For a bounded analytic function φ on Ω, we will give necessary and sufficient conditions under which the complement of the essential spectrum of Mφ in φΩ ...
Parastoo Heiatian Naeini   +1 more
doaj   +1 more source

Modular multiplication operator and quantized baker's maps [PDF]

open access: yes, 2007
The modular multiplication operator, a central subroutine in Shor's factoring algorithm, is shown to be a coherent superposition of two quantum baker's maps when the multiplier is 2.
A. Lakshminarayan
semanticscholar   +1 more source

Composition and multiplication operators between Orlicz function spaces

open access: yesJournal of Inequalities and Applications, 2016
Composition operators and multiplication operators between two Orlicz function spaces are investigated. First, necessary and sufficient conditions for their continuity are presented in several forms.
Tadeusz Chawziuk   +4 more
doaj   +1 more source

Multiplication operators on the space of functions of bounded variation

open access: yesDemonstratio Mathematica, 2017
In this paper,we study the properties of the multiplication operator acting on the bounded variation space BV[0, 1]. In particular,we show the existence of non-null compact multiplication operators on BV[0, 1] and non-invertible Fredholm multiplication ...
Astudillo-Villalba Franklin R.   +1 more
doaj   +1 more source

Integral representation of vertical operators on the Bergman space over the upper half-plane

open access: yesComptes Rendus. Mathématique, 2023
Let $\Pi $ denote the upper half-plane. In this article, we prove that every vertical operator on the Bergman space $\mathcal{A}^2(\Pi )$ over the upper half-plane can be uniquely represented as an integral operator of the form \begin{equation*} \left ...
Bais, Shubham R.   +2 more
doaj   +1 more source

Compactness property of the linearized Boltzmann operator for a diatomic single gas model

open access: yesNetworks and Heterogeneous Media, 2022
In the following work, we consider the Boltzmann equation that models a diatomic gas by representing the microscopic internal energy by a continuous variable I. Under some convenient assumptions on the collision cross-section \begin{document}$ \mathcal{B}
S. Brull, Marwa Shahine, P. Thieullen
semanticscholar   +1 more source

On (P*-N) quasi normal operators Of order "n" In Hilbert space

open access: yesAl-Mustansiriyah Journal of Science, 2021
Through this paper, we submitted  some types of quasi normal operator is called be (k*-N)- quasi normal operator of order n defined on a Hilbert space H, this concept is generalized of some kinds of  quasi normal operator appear recently form most ...
Salim Dawood M., Jaafer Hmood Eidi
doaj   +1 more source

PRODUCTS OF RADIAL DERIVATIVE AND MULTIPLICATION OPERATOR BETWEEN MIXED NORM SPACES AND ZYGMUND-TYPE SPACES ON THE UNIT BALL

open access: yes, 2014
In this paper, we obtain some characterizations of the boundedness and compactness of the products of the radial derivative and multiplication operator RMu between mixed norm spaces H(p, q, φ) and Zygmund-type spaces on the unit ball.
Jie Zhou, Yongmin Liu
semanticscholar   +1 more source

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