Abstract
This paper deals with the Stancu type generalization of Szász–Mirakyan–Baskakov operators. We establish some direct results in the polynomial weighted space of continuous functions defined on the interval \([0,\infty )\). Also, Voronovskaja type theorem is studied.
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Mahmudov, N.I.: Some approximation results on \(q\)-beta-Szász operators. Mediterr. J. Math. 7(3), 297 (2010)
Aral, A.: A generalization of Szász–Mirakyan operators based on \(q\)-integer. Math. Comput. Model. 47 (9–10), 1052–1062 (2008)
Khan, H.H.: Approximation of classes of function, Ph. D. thesis, AMU, Aligarh (1974)
Mishra, V.N., Khatri, K., Mishra, L.N., Deepmala: Inverse result in simultaneous approximation by Baskakov–Durrmeyer–Stancu operators. J. Inequal. Appl. 2013, 586 (2013)
Mishra, V.N., Khatri, K., Mishra, L.N.: Statistical approximation by Kantorovich type discrete \(q\)-beta operators. Adv. Differ. Equ. 2013, 345 (2013)
Mishra, V.N., Khatri, K., Mishra, L.N., Deepmala: Trigonometric approximation of periodic signals belonging to generalized weighted Lipschitz \(W (Lr, \xi (t)), (r \ge 1)-\) class by Nörlund–Euler \((N, p_n) (E, q)\) operator of conjugate series of its Fourier series, accepted for publication in Journal of Classical Analysis, on 21 May 2014
Prasad, G., Agrawal, P.N., Kasana, H.S.: Approximation of functions on \([0,1]\) by a new sequence of modified Szász operators. Math. Forum 6(2), 1–11 (1983)
Gupta, V.: A note on modified Szász operators. Bull. Inst. Math. Acad. Sinica 21(3), 275–278 (1993)
Stancu, D.D.: Approximation of fuction by new class of linear polynomial operators. Rev. Roum. Math. Pure Appl. 13, 1173–1194 (1968)
Stancu, D.D.: Approximation of fuction by means of a new generalized Bernstein operator. Calcolo 20(2):211–229 (1983)
Bernstein, S.N.: Démonstration du théoréme de Weierstrass fondée sur le calcul de probabilités. Commun. Soc. Math. Kharkow 13(2), 1–2 (1912–1913)
Ibrahim, B.: Approximation by Stancu–Chlodowsky polynomials. Comput. Math. Appl. 59, 274–282 (2010)
Gupta, V., Karsli, H.: Some approximation properties by \(q\)-Szász–Mirakyan–Baskakov–Stancu operators. Lobachevskii J. Math. 33(2), 175–182 (2012)
DeVore, R.A., Lorentz, G.G.: Constructive Approximation. Springer, Berlin (1993)
Gadzhiev, A.D.: Theorems of the type of P.P. Korovkin theorems. Math. Zametki 20(5), 781–786 (1976). English translation in Math. Notes 20(5–6), 996–998 (1976)
Wafi, A., Khatoon, S.: Direct and inverse theorems for generalized Baskakov operators in polynomial weight spaces. Anal. Stint. Ale Univ. Al. I. Cuza, vol. L, s. i. a, mathematica, f.l., pp. 159–173 (2004)
Gadjiev, A.D., Efendiyev, R.O., Ibikli, E.: On Korovkin type theorem in the space of locally integrable functions. Czechoslovak Math. J. 1(128), 45–53 (2003)
Mursaleen, M., Karakaya, V.: Müzeyyen Ertürk, Faik Gürsoy. Weighted statistical convergence and its application to Korovkin type approximation theorem. Appl. Math. Comput. 218, 9132–9137 (2012)
Gupta, V., Aral, A., Ozhavzali, M.: Approximation by \(q\)-Szász–Mirakyan–Baskakov operators. Fasciculi Math. 48, 35–48 (2012)
King, J.P.: Postitive linear operator which preserves \(x^2\). Acta. Math. Hungar. 99, 203–208 (2003)
Mishra, V.N., Khan, H.H., Khatri, K., Mishra, L.N.: Hypergeometric representation for Baskakov–Durrmeyer–Stancu type operators. Bull. Math. Anal. Appl. 5(3), 18–26 (2013)
Mishra, V.N., Khatri, K., Mishra, L.N.: Some approximation properties of \(q\)-Baskakov–beta-Stancu type operators. J. Calc. Var. vol. 2013, Article ID 814824, pp. 1–8 (2013)
Mishra, V.N., Khatri, K., Mishra, L.N.: On simultaneous approximation for Baskakov–Durrmeyer–Stancu type operators. J. Ultra Sci. Phy. Sci. 24(3–A), 567–577 (2012)
Mishra, V.N., Mishra, L.N.: Trigonometric approximation in \(L_p (p \ge 1)\)-spaces. Int. J. Contemp. Math. Sci. 7(12), 909–918 (2012)
Mishra, L.N., Mishra, V.N., Khatri, K., Deepmala: On the trigonometric approximation of signals belonging to generalized weighted Lipschitz \(W(L_r, \xi (t)) (r \ge 1)\)-class by matrix \(C^1\cdot N_p\) operator of conjugate series of its Fourier series. Appl. Math. Comput. 237, 252–263 (2014). doi:10.1016/j.amc.2014.03.085
Acknowledgments
The authors would like to express their deep gratitude to the anonymous learned referee(s) and the editor for their valuable suggestions and constructive comments, which resulted in the subsequent improvement of this research article. Special thanks are due to Prof. Jacek Banasiak, Editor in chief of Afrika Matematika for kind cooperation, smooth behavior during communication and for their efforts to send the reports of the manuscript timely. The authors are also grateful to all the editorial board members and reviewers of esteemed journal i.e. Afrika Matematika. The second author PS is thankful to the Ministry of Human Resource Development, New Delhi, India for supporting this research article to carry out her research work (Ph.D. in Full-time Institute Research (FIR) category) under the supervision of Dr. Vishnu Narayan Mishra at Sardar Vallabhbhai National Institute of Technology, Ichchhanath Mahadev Dumas Road, Surat (Gujarat), India. The first author VNM acknowledges that this project was supported by the Cumulative Professional Development Allowance (CPDA), SVNIT, Surat (Gujarat), India. Both authors carried out the proof of Lemmas and Theorems. Each author contributed equally in the development of the manuscript. VNM conceived of the study and participated in its design and coordination. Both authors read and approved the final version of manuscript. The authors declare that there is no conflict of interests regarding the publication of this research article.
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Mishra, V.N., Sharma, P. Approximation by Szász–Mirakyan–Baskakov–Stancu operators. Afr. Mat. 26, 1313–1327 (2015). https://doi.org/10.1007/s13370-014-0288-1
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DOI: https://doi.org/10.1007/s13370-014-0288-1
Keywords
- Szász–Mirakyan–Baskakov–Stancu type operators
- Weighted approximation
- Rate of convergence
- Stancu operators
- Modulus of continuity