TY - JOUR T1 - Refinements Jensen's Inequality and Some Their Applications AU - Sarikaya, Mehmet Zeki PY - 2024 DA - October Y2 - 2024 JF - Konuralp Journal of Mathematics JO - Konuralp J. Math. PB - Mehmet Zeki SARIKAYA WT - DergiPark SN - 2147-625X SP - 112 EP - 119 VL - 12 IS - 2 LA - en AB - This paper aims to present a new refinement of the Jensen inequality specifically for convex functions. Building on this refinement, the paper derives various related inequalities, with a particular focus on Bullen's inequality and Ostrowski's inequality. Furthermore, it explores practical applications of these derived inequalities in the context of mean inequalities, providing a deeper understanding and broader utility of these mathematical concepts. KW - Convex function KW - Bullen inequality KW - Jensen inequality KW - Ostrowski inequality and Special means CR - [1] S. Abramovich, G. Jameson and G. Sinnamon, Refining Jensen’s inequality. Bulletin math´ematique de la Societe des Sciences Mathematiques de Roumanie, 2004, 3-14. CR - [2] M. Çakmak, The differentiable h-convex functions involving the Bullen inequality, Acta Univ. Apulensis 2021, 65, 29–36. CR - [3] M. Çakmak, On some Bullen-type inequalities via conformable fractional integrals, J. Sci. Perspect. 3(4), 285–298, 2019. CR - [4] S. S. Dragomir, Ostrowski type inequalities for functions whose derivatives are h-convex in absolute value, Tbilisi Mathematical Journal 7(1) (2014), pp. 1–17. CR - [5] S. S. Dragomir and C. E. M. Pearce, Selected topics on Hermite–Hadamard inequalities and applications, RGMIA Monographs, Victoria University, 2000. CR - [6] T. Du, C. Luo and Z. Cao, On the Bullen-type inequalities via generalized fractional integrals and their applications, Fractals, 29(07), 2150188, 2021. CR - [7] S. Erden and M. Z. Sarikaya, Generalized Bullen type inequalities for local fractional integrals and its applications, Palestine Journal of Mathematics, 9(2), 2020. CR - [8] A. Fahad, S. I. Butt, B. Bayraktar, M. Anwar and Y. Wang, Some new Bullen-type inequalities obtained via fractional integral operators. Axioms, 12(7), 691, 2023. CR - [9] F. Hezenci, H. Budak and H. Kara, A study on conformable fractional version of Bullen-type inequalities. Turkish Journal of Mathematics, 47(4), 1306-1317, 2023. CR - [10] S. Hussain and S. Mehboob, On some generalized fractional integral Bullen type inequalities with applications, J. Fract. Calc. Nonlinear Syst. 2021, 2, 93–112. CR - [11] L Horvath, A refinement of the integral form of Jensen’s inequality. Journal of Inequalities and Applications, 2012, 1-19, 2012. CR - [12] I. Işcan, T. Toplu and F. Yetgin, Some new inequalities on generalization of Hermite–Hadamard and Bullen type inequalities, applications to trapezoidal and midpoint formula, Kragujev. J. Math. 45(4), 647–657, 2021. CR - [13] M.A Khan, J. Khan and J. Pecaric, Generalization of Jensen’s and Jensen-Steffensen’s inequalities by generalized majorization theorem. J. Math. Inequal, 11(4), 2017, 1049-1074. CR - [14] C. Niculescu and L.E. Persson, Convex functions and their applications (Vol. 23). New York: Springer, 2006. CR - [15] D. S. Mitrinovic, J. E. Pecaric, and A. M. Fink, Classical and New Inequalities in Analysis, Mathematics and its Applications (East European Series), 61. Kluwer Academic Publishers Group, Dordrecht, 1993. CR - [16] A. Ostrowski, Uber die Absolutabweichung einer differenzierbaren Funktion von ihrem Integralmittelwert, Comment. Math. Helv., 10(1) (1937), 226227. CR - [17] H. Öğülmüş¸ and M. Z. Sarikaya, Some Hermite–Hadamard type inequalities for h-convex functions and their applications. Iranian Journal of Science and Technology, Transactions A: Science, 44, 813-819, (2020). UR - https://dergipark.org.tr/en/pub/konuralpjournalmath/issue//1557009 L1 - https://dergipark.org.tr/en/download/article-file/4245171 ER -