Results 1 to 10 of about 1,306,756 (298)

ON THE BEST APPROXIMATION OF THE DIFFERENTIATION OPERATOR [PDF]

open access: yesUral Mathematical Journal, 2015
In this paper we give a solution of the problem of the best approximation in the uniform norm of the differentiation operator of order k by bounded linear operators in the class of functions with the property that the Fourier transforms of their ...
Vitalii V. Arestov
doaj   +4 more sources

Metrical Boundedness and Compactness of a New Operator between Some Spaces of Analytic Functions

open access: yesAxioms, 2023
The metrical boundedness and metrical compactness of a new operator from the weighted Bergman-Orlicz spaces to the weighted-type spaces and little weighted-type spaces of analytic functions are characterized.
Stevo Stević
doaj   +1 more source

Bounded on the semi-axis multiperiodic solution of a linear finite-hereditarity integro-differential equation of parabolic type

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2023
The question of the existence of a solution of linear integro-differential systems of parabolic type limited on the semiaxis in a spatial variable and multiperiodic in time variables was considered. Sufficient conditions of multiperiodic oscillations in
Zh.A. Sartabanov, G.M. Aitenova
doaj   +1 more source

DETERMINISTIC SYSTEMS WITH NATURAL QUANTIZATION [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2020
Subject of Research. The research of deterministic systems is a topical problem of natural science. The paper presents an approach for behavior study of the deterministic systems.
Victoria V. Golovina   +2 more
doaj   +1 more source

Application of spectral decomposition to establish inequalities for operators

open access: yesResearches in Mathematics, 2023
We give specific examples of the spectral decomposition of self-adjoint operators in application to establish sharp inequalities for their powers.
R. Bilichenko, S. Zhir
doaj   +1 more source

Complex Fractional-Order LQIR for Inverted-Pendulum-Type Robotic Mechanisms: Design and Experimental Validation

open access: yesMathematics, 2023
This article presents a systematic approach to formulate and experimentally validate a novel Complex Fractional Order (CFO) Linear Quadratic Integral Regulator (LQIR) design to enhance the robustness of inverted-pendulum-type robotic mechanisms against ...
Omer Saleem, Faisal Abbas, Jamshed Iqbal
doaj   +1 more source

Numerical solution of partial differential equations using Daubechies Filter with accuracy order six [PDF]

open access: yesSurveys in Mathematics and its Applications, 2022
his article considers the representation of differentiation operators using Daubechies wavelets to solve PDEs numerically. Derivative approximation using this compactly supported wavelets convert the action into a matrix multiplication.
Athira Babu, Noufal Asharaf
doaj  

Composition-Differentiation Operator on the Bergman Space

open access: yesPan-American Journal of Mathematics, 2023
We investigate the properties of composition-differentiation operator Dψ on the Bergman space of the unit disk L2a(D). Specifically, we characterize the properties of the reproducing kernel for the derivatives of the Bergman space functions. Moreover, we
K. O. Aloo, J. O. Bonyo, I. Okello
doaj   +1 more source

On Smoothness in Lp, 0 < p < 1

open access: yesМоделирование и анализ информационных систем, 2015
We discuss properties of functions which are covered by spreading the differentiation operator from the space W₁¹.
A. N. Morozov
doaj   +3 more sources

On the equivalence of differential operators of infinite order with constant coefficients [PDF]

open access: yesMathematica Bohemica, 2017
We investigate the conditions of equivalence of a differential operator of infinite order with constant coefficients to the operator of differentiation in one space of analytic functions.
Yuriy Linchuk
doaj   +1 more source

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