International Journal on Minority and Group Rights. Vol. 10. 2003. P.. 203-220
This article proposes a new refinement of the celebrated Jensen inequality. Some refinements have been obtained for quasi-arithmetic means, Hölder and Hermite–Hadamard inequalities. Several applications are given in information theory. A more general refinement of Jensen inequality is presented associated to n functions. © 2020, The Author(s).