Results 51 to 60 of about 618,275 (223)

Approximation properties of a new family of Gamma operators and their applications

open access: yesAdvances in Difference Equations, 2021
The present paper introduces a new modification of Gamma operators that protects polynomials in the sense of the Bohman–Korovkin theorem. In order to examine their approximation behaviours, the approximation properties of the newly introduced operators ...
Reyhan Özçelik   +3 more
doaj   +1 more source

Approximation properties by shifted knots type of α-Bernstein–Kantorovich–Stancu operators

open access: yesJournal of Inequalities and Applications
Through the real polynomials of the shifted knots, the α-Bernstein–Kantorovich operators are studied in their Stancu form, and the approximation properties are obtained.
Md. Nasiruzzaman   +3 more
doaj   +1 more source

Design of Multi-Dimensional Recursive Systems through Pad'e Type Rational Approximation

open access: yesNonlinear Analysis, 2002
The results obtained in classical 1-D rational approximation are extended in this paper to rational approximation of M-D functions. A full analog of classical Montessus de Ballore theorem for the convergence of the rows of Pad´e’s tables is obtained.
Valeri V. Vavilov   +2 more
doaj   +1 more source

Approximation Properties of λ-Gamma Operators Based on q-Integers

open access: yesJournal of Function Spaces, 2020
In the present paper, we will introduce λ-Gamma operators based on q-integers. First, the auxiliary results about the moments are presented, and the central moments of these operators are also estimated.
Wen-Tao Cheng, Xiao-Jun Tang
doaj   +1 more source

Chinese remainder approximation theorem

open access: yesTopology and its Applications, 2017
22 ...
openaire   +3 more sources

An extension of a theorem of Sahab, Khan, and Sessa

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
A fixed point theorem of Fisher and Sessa is generalized to locally convex spaces and the new result is applied to extend a recent theorem on invariant approximation of Sahab, Khan, and Sessa.
A. R. Khan, N. Hussain
doaj   +1 more source

Arithmetic Demailly approximation theorem

open access: yesAdvances in Mathematics
We generalize the Demailly approximation theorem from complex geometry to Arakelov geometry.As an application, let $X/\mathbb{Q}$ be an integral projective variety and $\overline N$ be an adelic line bundle on $X$, we prove that $\operatorname{ess}(\overline N) \geq 0$ $\Longrightarrow $ $\overline N$ pseudo-effective.
Qu, Binggang, Yin, Hang
openaire   +2 more sources

An extension of a best approximation theorem

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1996
In this paper an extension of a theorem of Prolla is given and several interesting corollaries are derived. Fixed point results are also given in the end.
A. Carbone
doaj   +1 more source

Low-rank Approximation of Linear Maps

open access: yes, 2018
This work provides closed-form solutions and minimal achievable errors for a large class of low-rank approximation problems in Hilbert spaces. The proposed theorem generalizes to the case of linear bounded operators and p-th Schatten norms previous ...
Heas, Patrick, Herzet, Cedric
core  

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