Open Access Research

A refinement of the integral form of Jensen’s inequality

László Horváth

Author Affiliations

Department of Mathematics, University of Pannonia, Egyetem u. 10, Veszprém, 8200, Hungary

Journal of Inequalities and Applications 2012, 2012:178 doi:10.1186/1029-242X-2012-178

Published: 16 August 2012

Abstract

There are a lot of refinements of the discrete Jensen’s inequality, and this problem has been studied by many authors. It is also a natural problem to give analogous results for the classical Jensen’s inequality. In spite of this, few papers have been published dealing with this problem. The purpose of this paper is to give some refinements of the classical Jensen’s inequality. The results give a new approach of this topic. Moreover, new discrete inequalities can be derived, and the integral analogous of discrete inequalities can be obtained. We also have new refinements of the left-hand side of the Hermite-Hadamard inequality.

MSC: 26D07, 26A51.

Keywords:
Jensen’s inequality; convex function; measure space; Hermite-Hadamard inequality