Results 1 to 10 of about 1,306,756 (298)
ON THE BEST APPROXIMATION OF THE DIFFERENTIATION OPERATOR [PDF]
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
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
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]
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
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
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]
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
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
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]
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

