Better Approximations for Quasi-Convex Functions

Authors

DOI:

https://doi.org/10.24193/subbmath.2024.2.02

Keywords:

Hölder-İşcan scan inequality, Hermite-Hadamard inequality, Simpson and Ostrowski type inequality, midpoint and trapezoid type inequality, quasi-convex functions

Abstract

In this paper, by using Hölder-İşcan Hölder integral inequality and a general identity for differentiable functions, we can get new estimates on generalization of Hadamard, Ostrowski and Simpson type integral inequalities for functions whose derivatives in absolute value at certain power are quasi-convex functions. It is proved that the result obtained Hölder-İşcan integral inequality is better than the result obtained by applying the Hölder inequality.

Mathematics Subject Classification (2010): 26A51, 26D10, 26D15.

Received 17 February 2022; Accepted 03 April 2023.

References

Dragomir, S.S., Pearce, C.E.M., Selected Topics on Hermite-Hadamard Inequalities and Applications, RGMIA Monographs, Victoria University, 2000.

Dragomir, S.S., Pečarić, J., Persson, L.E., Some inequalities of Hadamard type, Soochow Journal of Mathematics, 21(3)(1995), 335-341.

Dragomir, S.S., Rassias, Th.M., Ostrowski Type Inequalities and Applications in Numerical Integration, Kluwer Academic Publishers, Dordrecht, Boston, London, 2002.

Hadamard, J., Étude sur les propriétés des fonctions entières en particulier d’une fonction considérée par Riemann, J. Math. Pures Appl., 58(1893), 171-215.

İşcan, İ., New estimates on generalization of some integral inequalities for s-convex functions and their applications, International Journal of Pure and Applied Mathematics, 86(4)(2013), 727-746.

İşcan, İ., On generalization of some integral inequalities for quasi-convex functions and their applications, International Journal of Engineering and Applied Sciences, 3(1)(2013), 37-42.

İşcan, İ., New refinements for integral and sum forms of Hölder inequality, Journal of Inequalities and Applications, 2019(1)(2019), 1-11.

İşcan, İ., Kadakal, H., Kadakal, M., Some new integral inequalities for n-times differentiable quasi-convex functions, Sigma, 35(3)(2017), 363-368.

Kadakal, H., Multiplicatively P-functions and some new inequalities, New Trends in Mathematical Sciences, 6(4)(2018), 111-118.

Kadakal, H., Hermite-Hadamard type inequalities for trigonometrically convex functions, University of Bacău, Faculty of Sciences Scientific Studies and Research Series Mathematics and Informatics, 28(2)(2019), 19-28.

Kadakal, H., New inequalities for strongly r-convex functions, Journal of Function Spaces, 2019(2019), ID 1219237, 10 pages.

Kadakal, H., Kadakal, M., İşcan, İ., Some new integral inequalities for n-times differentiable s-convex and s-concave functions in the second sense, Mathematics and Statistic, 5(2)(2017), 94-98.

Kadakal, H., Kadakal, M., İşcan, İ., New type integral inequalities for three times differentiable preinvex and prequasiinvex functions, Open J. Math. Anal., 2(1)(2018), 33-46.

Kadakal, M., İşcan, İ., Agarwal, P., Jleli, M., Exponential trigonometric convex functions and Hermite-Hadamard type inequalities, Mathematica Slovaca, 71(1)(2021), 43-56.

Kadakal, M., İşcan, İ., Kadakal, H., Bekar, K., On improvements of some integral inequalities, Honam Mathematical Journal, 43(3)(2021), 441-452.

Kadakal, M., Kadakal, H., İşcan, İ., Some new integral inequalities for n-times differentiable s-convex functions in the first sense, Turkish Journal of Analysis and Number Theory, 5(2)(2017), 63-68.

Maden, S., Kadakal, H., Kadakal, M., İşcan, İ., Some new integral inequalities for n- times differentiable convex and concave functions, Journal of Nonlinear Sciences and Applications, 10(12)(2017), 6141-6148.

Özcan, S., Some integral inequalities for harmonically (α, s)-convex functions, Journal of Function Spaces, 2019 (2019), Art. ID 2394021, 8 pages.

Özcan, S., İşcan, İ., Some new Hermite-Hadamard type inequalities for s-convex functions and their applications, Journal of Inequalities and Applications, 2009(2019), 201.

Sarikaya, M.Z., Aktan, N., On the generalization of some integral inequalities and their applications, Mathematical and Computer Modelling, 54(2011), 2175-2182.

Sarikaya, M.Z., Set, E., Özdemir, M.E., On new inequalities of Simpson’s type for convex functions, RGMIA Res. Rep. Coll., 13(2)(2010), Art. 2.

Downloads

Published

2024-06-18

How to Cite

KADAKAL, H. (2024). Better Approximations for Quasi-Convex Functions. Studia Universitatis Babeș-Bolyai Mathematica, 69(2), 267–281. https://doi.org/10.24193/subbmath.2024.2.02

Issue

Section

Articles

Similar Articles

<< < 12 13 14 15 16 17 18 19 20 21 > >> 

You may also start an advanced similarity search for this article.