INEQUALITIES OF KARAMATA, SCHUR AND MUIRHEAD, AND SOME APPLICATIONS

The Teaching, Mathematics
2005 unpublished
Three classical general inequalities-those of Karamata, Schur and Muirhead-are proved in this article. They can be used in proving other inequalities , particularly those appearing as problems in mathematical competitions, including International Mathematical Olympiads. Some problems of this kind are given as examples. Several related inequalities-those of Petrovi´cPetrovi´c, Steffensen and Szegö-are treated, as well.
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