Results 11 to 20 of about 26,959 (183)

Asymptotic formula in simultaneous approximation for certain Ismail-May-Baskakov operators

open access: diamondJournal of Numerical Analysis and Approximation Theory, 2021
In the present paper, we introduce a modification of Ismail-May operators having weights of Baskakov basis functions. We estimate weighted Korovkin's theorem and difference estimates between two operators and establish a Voronovskaja type asymptotic ...
Vijay Gupta, Michael Th. Rassias
doaj   +10 more sources

Approximation of Real Functions by a Generalization of Ismail–May Operator [PDF]

open access: goldMathematics, 2022
In this paper, we generalize a sequence of positive linear operators introduced by Ismail and May and we study some of their approximation properties for different classes of continuous functions. First, we estimate the error of approximation in terms of
Adrian Holhoş
doaj   +3 more sources

Ismail-May-Kantorovich operators preserving affine functions

open access: diamondFilomat, 2022
We introduce here a modification of the Ismail-May operators, preserving affine function and estimate the order of approximation with the help of classical approach viz. the second order modulus of continuity, and the Peetre?s K-functional. Further, we provide the convergence estimates for the differences of Ismail-May operators and its ...
Gunjan Agrawal, Vijay Gupta
openaire   +3 more sources

Approximation for link Ismail–May operators

open access: closedAnnals of Functional Analysis, 2020
The authors discuss the approximation properties of certain link integral modification of Ismail-May operators. They establish some direct convergence estimates including error, difference estimates and an asymptotic formula in simultaneous approximation. The convergence of polynomial function with the link operators through graphical representation is
Vijay Gupta, Gunjan Agrawal
openaire   +2 more sources

On a composition of Ismail–May operator [PDF]

open access: bronzeMathematical Methods in the Applied Sciences
In this paper, we address a discrete operator based on the composition of Ismail–May operator and Szász–Mirakjan operator and study its approximation properties for various classes of continuous functions using Taylor's formula. We estimate its moments and further give direct theorems employing Peetre's K‐functional and the modulus of continuity ...
Vijay Gupta, Vaibhav Sharma
openaire   +3 more sources

Accelerating Innovation in The Industrial Revolution 4.0 Era for a Sustainable Future

open access: yesInternational Journal of Technology, 2022
Today we are facing the era of the industrial revolution 4.0, which brings many changes in all fields. In this era, there are massive changes in various fields through the combination of technology that reduces the barriers between the physical and ...
Isti Surjandari   +9 more
doaj   +1 more source

Spectral Analysis of Certain Schr\"odinger Operators [PDF]

open access: yes, 2012
The $J$-matrix method is extended to difference and $q$-difference operators and is applied to several explicit differential, difference, $q$-difference and second order Askey-Wilson type operators. The spectrum and the spectral measures are discussed in
Ismail, Mourad E. H., Koelink, Erik
core   +10 more sources

Some Orthogonal Polynomials Arising from Coherent States [PDF]

open access: yes, 2011
We explore in this paper some orthogonal polynomials which are naturally associated to certain families of coherent states, often referred to as nonlinear coherent states in the quantum optics literature.
Akhiezer N I   +19 more
core   +1 more source

${\mathcal D}$-Pseudo-Bosons, Complex Hermite Polynomials, and Integral Quantization [PDF]

open access: yes, 2015
The ${\mathcal D}$-pseudo-boson formalism is illustrated with two examples. The first one involves deformed complex Hermite polynomials built using finite-dimensional irreducible representations of the group ${\rm GL}(2,{\mathbb C})$ of invertible $2 ...
Ali, S. Twareque   +2 more
core   +3 more sources

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