Results 21 to 30 of about 574,412 (205)
\(\mathcal{K}\)-FUNCTIONALS AND EXACT VALUES OF \(n\)-WIDTHS IN THE BERGMAN SPACE
Ural Mathematical Journal, 2017 In this paper, we consider the problem of mean-square approximation of complex variables functions which are regular in the unit disk of the complex plane. We obtain sharp estimates of the value of the best approximation by algebraic polynomials in terms
Mukim S. Saidusaynov
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The Approximation of Laplace-Stieltjes Transforms Concerning Sun’s Type Function
Journal of Function Spaces, 2021 The main aim of this paper is to establish some theorems concerning the error EnF,β, the Sun’s type function Ur, and Muσ,F of entire functions defined by Laplace-Stieltjes transforms with infinite order converge in the whole complex plane.
Xia Shen, Hong Yan Xu
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On approximation of two-dimensional potential and singular operators [PDF]
E-Journal of Analysis and Applied Mathematics, 2019 The purpose of this paper is the construction of second-order of accuracy quadrature formulas for the numerical calculation of the Vekua types two-dimensional potential and singular integral operators in the unit disk of complex plane.
Charyyar Ashyralyyev, Sedanur Efe
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ON ENTIRE FUNCTIONS WITH GIVEN ASYMPTOTIC BEHAVIOR
Проблемы анализа, 2018 We study approximation of subharmonic functions on the complex plane by logarithms of moduli of entire functions. In the theory of series of exponentials these entire functions are the main tool.
Isaev K . P .
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Фізика і хімія твердого тіла, 2021 Zinc blend (zb) and wurtizite (wz) structure of cadmium selenide (CdSe) is determined using density-functional theory within local density approximation (LDA), generalized gradient approximation (GGA), Hubbard-correction (GGA+U) and Hybrid functional ...
Teshome Gerbaba Edossa +1 more
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The Voigt and complex error function: Huml\'i\v{c}ek's rational approximation generalized [PDF]
, 2018 Accurate yet efficient computation of the Voigt and complex error function is a challenge since decades in astrophysics and other areas of physics.
Schreier, Franz
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Parameterization of 3D cloud geometry and a neural-network-based fast forward operator for polarized radiative transfer [PDF]
Atmospheric Measurement TechniquesClouds generally have a complex three-dimensional geometry. However, realistic three-dimensional radiative transfer simulations of clouds are computationally expensive, so most retrievals of cloud properties assume one-dimensional clouds, which ...
A. Weber, G. Köcher, B. Mayer
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Examples and Counterexamples, 2022 We continue the investigation on the spectrum of operators arising from the discretization of partial differential equations. In this paper we consider a three field formulation recently introduced for the finite element least-squares approximation of ...
Linda Alzaben +2 more
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Helicity Asymmetry for Proton Emission from Polarized Electrons in the Eikonal Regime [PDF]
, 1997 The nuclear response to longitudinally polarized electrons, detected in coincidence with out-of-plane high-energy protons, is discussed in a simple model where the ejectile wave function is approximated as a plane wave with a complex wave vector.
Bianconi, A., Radici, M.
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Critical rotation of general-relativistic polytropic models simulating neutron stars: a post-Newtonian hybrid approximative scheme [PDF]
, 2014 We develop a "hybrid approximative scheme" in the framework of the post-Newtonian approximation for computing general-relativistic polytropic models simulating neutron stars in critical rigid rotation. We treat the differential equations governing such a
Geroyannis, Vassilis S. +1 more
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