A Note on Extrema of Linear Combinations of Elementary Symmetric Functions
arXiv:1103.0430 · doi:10.1080/03081087.2011.588438
Abstract
This note provides a new approach to a result of Foregger and related earlier results by Keilson and Eberlein. Using quite different techniques, we prove a more general result from which the others follow easily. Finally, we argue that the proof given by Foregger is flawed.
(v2) revision based on suggestions by referee