Lupaş Bernstein-Kantorovich operators using Jackson and Riemann type (p, q)-integrals
Filomat, Tome 36 (2022) no. 15, p. 5221

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In this paper, Lupaş Bernstein-Kantorovich operators have been studied using Jackson and Riemann type (p, q)-integrals. It has been shown that (p, q)-integrals as well as Riemann type (p, q)-integrals are not well defined for 0 q p 1 and thus further analysis is needed. Throughout the paper, the case 1 ≤ q p ∞ has been used. Advantages of using Riemann type (p, q)-integrals are discussed over general (p, q)-integrals. Lupaş Bernstein-Kantorovich operators constructed via Jackson integral need not be positive for every f ≥ 0. So to make these operators based on general (p, q)-integral positive, one need to con- sider strictly monotonically increasing functions, and to handle this situation Lupaş Bernstein-Kantorovich operators are constructed using Riemann type (p,q)-integrals. However Lupaş (p,q)-Bernstein-Kantorovich operators based on Riemann type (p, q)-integrals are always positive linear operators. Approximation properties for these operators based on Korovkin’s type approximation theorem are investigated. The rate of convergence via modulus of continuity and function f belonging to the Lipschitz class is computed.
DOI : 10.2298/FIL2215221I
Classification : 65D17, 41A10, 41A25, 41A36
Keywords: (p, q)-integers, Lupaş (p, q)-Bernstein-Kantorovich operators, general (p, q)-integral, Riemann type (p, q)-integrals, modulus of continuity, Korovkin type approximation
Mohammad Iliyas; Rameez A Bhatt; Asif Khan; M Mursaleen. Lupaş Bernstein-Kantorovich operators using Jackson and Riemann type (p, q)-integrals. Filomat, Tome 36 (2022) no. 15, p. 5221 . doi: 10.2298/FIL2215221I
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     author = {Mohammad Iliyas and Rameez A Bhatt and Asif Khan and M Mursaleen},
     title = {Lupa\c{s} {Bernstein-Kantorovich} operators using {Jackson} and {Riemann} type (p, q)-integrals},
     journal = {Filomat},
     pages = {5221 },
     year = {2022},
     volume = {36},
     number = {15},
     doi = {10.2298/FIL2215221I},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.2298/FIL2215221I/}
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