Results 11 to 20 of about 1,058,862 (209)

Approximation by multivariate Kantorovich-Kotelnikov operators

Journal of Mathematical Analysis and Applications, 2017
Approximation properties of multivariate Kantorovich-Kotelnikov type operators generated by different band-limited functions are studied. In particular, a wide class of functions with discontinuous Fourier transform is considered.
Kolomoitsev, Yu., Skopina, M.
core   +2 more sources

Supershift properties for nonanalytic signals. [PDF]

Nanophotonics
Abstract The phenomenon of superoscillations is of great interest in microscopy, antenna design, and material sciences. This phenomenon has been generalized and has given rise to the concept of supershift, which is a far reaching extension that applies to functions that may present discontinuous derivatives. From this perspective, this is a notion that
Colombo F, Sabadini I, Struppa DC, Yger A.   +3 more
europepmc   +2 more sources

Some general Kantorovich type operators

Journal of Numerical Analysis and Approximation Theory, 2012
A general class of linear and positive operators of Kantorovich-type is constructed. The operators of this type which preserve exactly two test functions from the set \(\{e_0, e_1, e_2\}\) are determined and their approximation properties and convergence
Petru I. Braica, Ovidiu T. Pop
doaj   +4 more sources

Classical Kantorovich Operators Revisited [PDF]

Ukrainian Mathematical Journal, 2019
The main object of this paper is to improve some of the known estimates for classical Kantorovich operators. A quantitative Voronovskaya-type result in terms of second moduli of continuity which improves some previous results is obtained. In order to explain non-multiplicativity of the Kantorovich operators a Chebyshev-Gr ss inequality is given.
Acu, Ana Maria, Gonska, Heinz H.
openaire   +4 more sources

Generalized Baskakov Kantorovich operators [PDF]

Filomat, 2017
In this paper, we construct generalized Baskakov Kantorovich operators. We establish some direct results and then study weighted approximation, simultaneous approximation and statistical convergence properties for these operators. Finally, we obtain the rate of convergence for functions having a derivative coinciding almost everywhere with ...
Agrawal, P. N., Goyal, Meenu
openaire   +2 more sources

Multivariate weighted kantorovich operators

Mathematical Foundations of Computing, 2020
Herein, the authors introduce a class of multidimensional weighted Kantorovich operators \(K_n\), \(n\geq 1\), whose definition is given on the space of continuous functions \(C(Q_{d})\) (where \(Q_d\) is the \(d\)-dimensional hypercube \([0,1]^{d}\), \(d\geq 1\)), and it involves the well-known Bernstein polynomials.
Acu, Ana-Maria, Hodis, Laura, Rasa, Ioan
openaire   +2 more sources

q-Bernstein-Schurer-Kantorovich Operators [PDF]

Journal of Inequalities and Applications, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Özarslan, Mehmet Ali, Vedi, Tuba
openaire   +4 more sources

Generalization of Szász operators: quantitative estimate and bounded variation

Karpatsʹkì Matematičnì Publìkacìï, 2021
Difference of exponential type Szász and Szász-Kantorovich operators is obtained. Similar estimates are given for higher order $\mu$-derivatives of the Szász operators and the Szász-Kantorovich type operators acting on the same order $\mu$-derivative of ...
K. Bozkurt, M.L. Limmam, A. Aral
doaj   +1 more source

A Note on Approximation of Blending Type Bernstein–Schurer–Kantorovich Operators with Shape Parameter α

Journal of mathematics, 2023
The objective of this paper is to construct univariate and bivariate blending type α-Schurer–Kantorovich operators depending on two parameters α∈0,1 and ρ>0 to approximate a class of measurable functions on 0,1+q,q>0.
Mohammad Ayman-Mursaleen, Nadeem Rao, Mamta Rani, A. Kiliçman, A. Al-Abied, Pradeep Malik   +5 more
semanticscholar   +1 more source

Generalized Baskakov-Kantorovich operators

Computers & Mathematics with Applications, 2014
Bu tez, üç bölümden oluşmaktadır. Birinci bölüm, bazı temel tanımlar ve yaklaşım teoremlerini içermektedir. İkinci bölümde, Taylor polinomu yardımıyla genelleştirilmiş Baskakov-Kantorovich operatörlerinin kuvvetli yaklaşım özellikleri polinom ağırlıklı uzaylarda verilmektedir. Üçüncü bölüm, bu tezin orijinal sonuçlarını içermektedir.
Zhang, Chungou, Zhu, Zhihui
  +6 more sources