Abstract
This chapter deals with the q-analogue of some discrete operators of exponential type. We study some approximation properties of the q-Bernstein polynomials, q-Szász–Mirakyan operators, q-Baskakov operators, and q-Bleimann, Butzer, and Hahn operators. Here, we present moment estimation, convergence behavior, and shape-preserving properties of these discrete operators.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
U. Abel, M. Ivan, Some identities for the operator of Bleimann, Butzer and Hahn involving divided differences. Calcolo 36, 143–160 (1999)
O. Agratini, Approximation properties of a generalization of Bleimann, Butzer and Hahn operators. Math. Pannon. 9, 165–171 (1988)
O. Agratini, A class of Bleimann, Butzer and Hahn type operators. An. Univ. Timişoara Ser. Math. Inform. 34, 173–180 (1996)
O. Agratini, Note on a class of operators on infinite interval. Demons. Math. 32, 789–794 (1999)
O. Agratini, G. Nowak, On a generalization of Bleimann, Butzer and Hahn operators based on q-integers. Math. Comput. Model. 53(5–6), 699–706 (2011)
F. Altomare, R. Amiar, Asymptotic formula for positive linear operators. Math. Balkanica (N.S.) 16(1–4), 283–304 (2002)
F. Altomare, M. Campiti, Korovkin Type Approximation Theory and Its Application (Walter de Gruyter Publications, Berlin, 1994)
G.E. Andrews, R. Askey, R. Roy, Special Functions (Cambridge University Press, Cambridge, 1999)
T.M. Apostal, Mathematical Analysis (Addison-Wesley, Reading, 1971)
A. Aral, A generalization of Szász–Mirakyan operators based on q-integers. Math. Comput. Model. 47(9–10), 1052–1062 (2008)
A. Aral, O. Doğru, Bleimann Butzer and Hahn operators based on q-integers. J. Inequal. Appl. 2007, 12 pp. (2007) [Article ID 79410]
A. Aral, V. Gupta, q-Derivatives and applications to the q-Szász Mirakyan operators. Calcalo 43(3), 151–170 (2006)
A. Aral, V. Gupta, On q-Baskakov type operators. Demons. Math. 42(1), 109–122 (2009)
A. Aral, V. Gupta, Generalized q-Baskakov operators. Math. Slovaca 61(4), 619–634 (2011)
A. Attalienti, M. Campiti, Bernstein-type operators on the half line. Czech. Math. J. 52(4), 851–860 (2002)
V.A. Baskakov, An example of sequence of linear positive operators in the space of continuous functions. Dokl. Akad. Nauk. SSSR 113, 249–251 (1957)
G. Bleimann, P.L. Butzer, L. Hahn, A Bernstein type operator approximating continuous function on the semi-axis. Math. Proc. A 83, 255–262 (1980)
F. Cao, C. Ding, Z. Xu, On multivariate Baskakov operator. J. Math. Anal. Appl. 307, 274–291 (2005)
E.W. Cheney, Introduction to Approximation Theory (McGraw-Hill, New York, 1966)
I. Chlodovsky, Sur le développement des fonctions d éfinies dans un interval infini en séries de polynômes de M. S. Bernstein. Compos. Math. 4, 380–393 (1937)
P.J. Davis, Interpolation and Approximation (Dover, New York, 1976)
Z. Ditzian, V. Totik, Moduli of Smoothness (Springer, New York, 1987)
O. Doğru, On Bleimann, Butzer and Hahn type generalization of Balázs operators, Dedicated to Professor D.D. Stancu on his 75th birthday. Studia Univ. Babeş-Bolyai Math. 47, 37–45 (2002)
O. Doğru, O. Duman, Statistical approximation of Meyer–König and Zeller operators based on the q-integers. Publ. Math. Debrecen 68, 190–214 (2006)
O. Dogru, V. Gupta, Monotonocity and the asymptotic estimate of Bleimann Butzer and Hahn operators on q integers. Georgian Math. J. 12, 415–422 (2005)
T. Ernst, The history of q-calculus and a new method, U.U.D.M Report 2000, 16, ISSN 1101-3591, Department of Mathematics, Upsala University, 2000
S. Ersan, O. Doğru, Statistical approximation properties of q-Bleimann, Butzer and Hahn operators. Math. Comput. Model. 49(7–8), 1595–1606 (2009)
Z. Finta, V. Gupta, Approximation properties of q-Baskakov operators. Cent. Eur. J. Math. 8(1), 199–211 (2009)
A.D. Gadzhiev, The convergence problem for a sequence of positive linear operators on unbounded sets and theoems analogous to that of P.P. Korovkin. Dokl. Akad. Nauk. SSSR 218(5), 1001–1004 (1974) [in Russian]; Sov. Math. Dokl. 15(5), 1433–1436 (1974) [in English]
A.D. Gadjiev, On Korovkin type theorems. Math. Zametki 20, 781–786 (1976) [in Russian]
A.D. Gadjiev, Ö. Çakar, On uniform approximation by Bleimann, Butzer and Hahn operators on all positive semi-axis. Trans. Acad. Sci. Azerb. Ser. Phys. Tech. Math. Sci. 19, 21–26 (1999)
A.D. Gadjiev, R.O. Efendiev, E. Ibikli, Generalized Bernstein Chlodowsky polynomials. Rocky Mt. J. Math. 28(4), 1267–1277 (1998)
G. Gasper, M. Rahman, Basic Hypergeometrik Series. Encyclopedia of Mathematics and Its Applications, vol. 35 (Cambridge University Press, Cambridge, 1990)
W. Heping, Korovkin-type theorem and application. J. Approx. Theor. 132, 258–264 (2005)
W. Heping, Properties of convergence for ω, q Bernstein polynomials. J. Math. Anal. Appl. 340(2), 1096–1108 (2008)
W. Heping, F. Meng, The rate of convergence of q-Bernstein polynomials for 0 < q < 1. J. Approx. Theor. 136, 151–158 (2005)
W. Heping, X. Wu, Saturation of convergence of q-Bernstein polynomials in the case q ≥ 1. J. Math. Anal. Appl. 337(1), 744–750 (2008)
A. II’inski, S. Ostrovska, Convergence of generalized Bernstein polynomials. J. Approx. Theor. 116, 100–112 (2002)
S.L. Lee, G.M. Phillips, Polynomial interpolation at points of a geometric mesh on a triangle. Proc. R. Soc. Edinb. 108A, 75–87 (1988)
B. Lenze, Bernstein–Baskakov–Kantorovich operators and Lipscitz type maximal functions, in Approximation Theory (Kecskemét, Hungary). Colloq. Math. Soc. János Bolyai, vol. 58 (1990), pp. 469–496
G.G. Lorentz, Bernstein Polynomials. Math. Expo., vol. 8 (University of Toronto Press, Toronto, 1953)
G.G. Lorentz, Approximation of Functions (Holt, Rinehart and Wilson, New York, 1966)
L. Lupas, A property of S. N. Bernstein operators. Mathematica (Cluj) 9(32), 299–301 (1967)
L. Lupas, On star shapedness preserving properties of a class of linear positive operators. Mathematica (Cluj) 12(35), 105–109 (1970)
N.I. Mahmudov, P. Sabancıgil, q-Parametric Bleimann Butzer and Hahn operators. J. Inequal. Appl. 2008, 15 pp. (2008) [Article ID 816367]
G. Mastroianni, A class of positive linear operators. Rend. Accad. Sci. Fis. Mat. Napoli 48, 217–235 (1980)
S. Ostrovska, q-Bernstein polynomials and their iterates. J. Approx. Theor. 123, 232–255 (2003)
S. Ostrovska, On the improvement of analytic properties under the limit q-Bernstein operator. J. Approx. Theor. 138(1), 37–53 (2006)
S. Ostrovska, On the Lupas q-analogue of the Bernstein operator. Rocky Mt. J. Math. 36(5), 1615–1629 (2006)
S. Ostrovska, The first decade of the q-Bernstein polynomials: results and perspectives. J. Math. Anal. Approx. Theor. 2, 35–51 (2007)
S. Ostrovska, The sharpness of convergence results for q Bernstein polynomials in the case q > 1. Czech. Math. J. 58(133), 1195–1206 (2008)
S. Ostrovska, On the image of the limit q Bernstein operator. Math. Meth. Appl. Sci. 32(15), 1964–1970 (2009)
S. Pethe, On the Baskakov operator. Indian J. Math. 26(1–3), 43–48 (1984)
G.M. Phillips, Bernstein polynomials based on the q- integers, The heritage of P.L. Chebyshev: A Festschrift in honor of the 70th-birthday of Professor T. J. Rivlin. Ann. Numer. Math. 4, 511–518 (1997)
G.M. Phillips, Interpolation and Approximation by Polynomials (Springer, Berlin, 2003)
C. Radu, On statistical approximation of a general class of positive linear operators extended in q-calculus. Appl. Math. Comput. 215(6), 2317–2325 (2009)
P.M. Rajković, M.S. Stanković, S.D. Marinkovic, Mean value theorems in q-calculus. Math. Vesnic. 54, 171–178 (2002)
T.J. Rivlin, An Introduction to the Approximation of Functions (Dover, New York, 1981)
I.J. Schoenberg, On polynomial interpolation at the points of a geometric progression. Proc. R. Soc. Edinb. 90A, 195–207 (1981)
D.D. Stancu, Approximation of functions by a new class of linear polynomial operators. Rev. Roumanine Math. Pures Appl. 13, 1173–1194 (1968)
O. Szász, Generalization of S. Bernstein’s polynomials to infinite interval. J. Research Nat. Bur. Stand. 45, 239–245 (1959)
Author information
Authors and Affiliations
Rights and permissions
Copyright information
© 2013 Springer Science+Business Media New York
About this chapter
Cite this chapter
Aral, A., Gupta, V., Agarwal, R.P. (2013). q-Discrete Operators and Their Results. In: Applications of q-Calculus in Operator Theory. Springer, New York, NY. https://doi.org/10.1007/978-1-4614-6946-9_2
Download citation
DOI: https://doi.org/10.1007/978-1-4614-6946-9_2
Published:
Publisher Name: Springer, New York, NY
Print ISBN: 978-1-4614-6945-2
Online ISBN: 978-1-4614-6946-9
eBook Packages: Mathematics and StatisticsMathematics and Statistics (R0)