Ostrowski type inequalities via (α,β,γ,δ)-convex function

Document Type : Research Paper

Authors

1 Shah Abdul Latif University, Department of Mathematics, Khairpur-66020, Pakistan

2 University of Karachi, Faculty of Science, Department of Mathematical Sciences, University Road, Karachi-75270, Pakistan

10.22075/ijnaa.2021.24568.2771

Abstract

In this paper, we are introducing very first time the class of (α,β,γ,δ) convex (concave) function in mixed kind, which is the generalization of many classes of functions given in   [2, 3, 4, 15, 16, 17].  We would like to state the well-known Ostrowski inequality via generalized Montgomery identity [14] for (α,β,γ,δ) convex (concave) function in mixed kind. In addition, we establish some Ostrowski-type inequalities for the class of functions whose derivatives in absolute values at certain powers are (α,β,γ,δ)-convex (concave) functions in mixed kind by using different techniques including Holder's inequality [27] and power mean inequality [26]. Also, various established results would be captured as special cases. Moreover, some applications in terms of special means would also be given.

Keywords

[1] M. Alomari, M. Darus, S.S. Dragomir, and P. Cerone, Ostrowski type inequalities for functions whose derivatives are s-convex in the second sense, Appl. Math. Lett. 23 (2010), 1071—1076.
[2] A. Arshad and A.R. Khan, Hermite-Hadamard-Fejer type integral inequality for s−p−convex functions of several kinds, TJMM 11 (2019), no. 2, 25–40.
[3] E.F. Beckenbach, Convex functions, Bull. Amer. Math. Soc. 54 (1948), 439–460.
[4] W.W. Breckner, Stetigkeitsaussagen fur eine Klasse verallgemeinerter konvexer Funktionen in topologischen linearen Raumen, Publ. Inst. Math. 23 (1978), no. 37, 13–20.
[5] P. Cerone and S.S. Dragomir, Ostrowski type inequalities for functions whose derivatives satisfy certain convexity assumptions, Demon. Math. 37 (2004), no. 2, 299–308.
[6] S.S. Dragomir, A functional generalization of Ostrowski inequality via Montgomery identity, Acta Math. Univ. Comenianae 84 (2015), no. 1, 63–78.
[7] S.S. Dragomir, Integral inequalities of Jensen type for λ-convex functions, Mate. Vesnik 68 (2016), no. 1, 45–57.
[8] S.S. Dragomir, Inequalities of Jensen type for η−convex functions, Fasciculi Math. 5 (2015), 35–52.
[9] S.S. Dragomir, A companion of Ostrowski’s inequality for functions of bounded variation and applications, Int. J. Nonlinear Anal. Appl. 5 (2014), 89–97.
[10] S.S. Dragomir, On the Ostrowski’s integral inequality for mappings with bounded variation and applications, Math. Inequal. Appl. no. 4(1), (2001), 59–66.
[11] S.S. Dragomir, Refinements of the generalised trapezoid and Ostrowski inequalities for functions of bounded variation, Arch. Math. 91 (2008), no. 5, 450–460.
[12] S.S. Dragomir and N.S. Barnett, An Ostrowski type inequality for mappings whose second derivatives are bounded and applications, J. Indian Math. Soc. (N.S.) 66 (1999), no. 4, 237–245.
[13] S.S. Dragomir, P. Cerone, N.S. Barnett, and J. Roumeliotis, An inequality of the Ostrowski type for double integrals and applications for Cubature formulae, RGMIA Res. Rep. Coll. 2 (1999), no. 6, 1–16.
[14] S. S. Dragomir, P. Cerone and J. Roumeliotis, A new generalization of Ostrowski integral inequality for mappings whose derivatives are bounded and applications in numerical integration and for special means, Appl. Math. Lett.  13 (2000), 19–25.
[15] S.S. Dragomir, J. Pecaric, and L. Persson, Some inequalities of Hadamard type, Soochow J. Math. 21 (1995), no. 3, 335–341.
[16] A. Ekinci, Klasik esitsizlikler yoluyla konveks Fonksiyonlar icin integral esitsizlikler, Ph.D. Thesis, Thesis ID: 361162 in tez2.yok.gov.tr Ataturk University, 2014.
[17] E.K. Godunova and V.I. Levin, Inequalities for functions of a broad class that contains convex, monotone and some other forms of functions, Numer. Math. Math. Phys. 166 (1985), 138–142.
[18] N. Irshad, A.R. Khan, and A. Nazir, Extension of Ostrowski type inequality via moment generating function, Adv. Inequal. Appl. 2, (2020), 1–15.
[19] N. Irshad, A.R. Khan, and M.A. Shaikh, Generalization of weighted Ostrowski inequality with applications in numerical integration, Adv. Ineq. Appl. 7 (2019), 1–14.
[20] N. Irshad, A.R. Khan, and M.A. Shaikh, Generalized weighted Ostrowski-Gruss type inequality with applications, Glob. J. Pure Appl. Math. 15 (2019), no. 5, 675–692.
[21] N. Irshad and A.R. Khan, On weighted Ostrowski Gruss inequality with applications, TJMM, 10 (2018), no. 1, 15–22.
[22] N. Irshad and A.R. Khan, Generalization of Ostrowski inequality for differentiable functions and its applications to numerical quadrature rules, J. Math. Anal. 8 (2017), no. 1, 79–102.
[23] D.S. Mitrinovic, J.E. Pecaric, and A.M. Fink, Inequalities Involving Functions and Their Integrals and Derivatives Kluwer Academic, Dordrecht, 1991.
[24] M.A. Noor and M.U. Awan, Some integral inequalities for two kinds of convexities via fractional integrals, TJMM, 5 (2013), 129 – 136.
[25] A.M. Ostrowski, Uber die absolutabweichung einer differentiebaren funktion von ihrem integralmitelwert, Comment. Math. Helv. 10 (1938), 226–227.
[26] Z.G. Xiao, and A.H. Zhang, Mixed power mean inequalities, Res. Commun. Inequal. no. 8 (2002), no. 1, 15—17.
[27] X. Yang, A note on Holder inequality, Appl. Math. Comput. 134 (2003), 319–322.

Articles in Press, Corrected Proof
Available Online from 19 January 2025
  • Receive Date: 17 September 2021
  • Revise Date: 24 September 2021
  • Accept Date: 16 December 2021