A refinement of Jensen's inequality for a class of increasing and concave functions.
Xia, Ye
Journal of Inequalities and Applications [electronic only], Tome 2008 (2008), / Harvested from The Electronic Library of Mathematics
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Publié le : 2008-01-01
DOI : https://doi.org/10.1155/2008/717614
EUDML-ID : urn:eudml:doc:129468 
@article{05313258,
     title = {A refinement of Jensen's inequality for a class of increasing and concave functions.},
     journal = {Journal of Inequalities and Applications [electronic only]},
     volume = {2008},
     year = {2008},
     doi = {10.1155/2008/717614},
     zbl = {1152.26023},
     language = {en},
     url = {http://dml.mathdoc.fr/item/05313258}
}

Xia, Ye. A refinement of Jensen's inequality for a class of increasing and concave functions.. Journal of Inequalities and Applications [electronic only], Tome 2008 (2008) . doi : 10.1155/2008/717614. http://gdmltest.u-ga.fr/item/05313258/