Majorization and Inequalities among Complete Homogeneous Symmetric Functions

TL;DR

This paper investigates whether majorization characterizes inequalities among complete homogeneous symmetric functions (CHs) and finds that it does not for degrees higher than 7.

Contribution

It provides a definitive answer that majorization fails to characterize inequalities among CHs for all degrees greater than 7.

Findings

Majorization characterizes inequalities among CHs up to degree 7.

For degrees greater than 7, majorization does not characterize these inequalities.

The study clarifies the limitations of majorization in the context of symmetric functions.

Abstract

Inequalities among symmetric functions are fundamental in various branches of mathematics, thus motivating a systematic study of their structure. Majorization has been shown to characterize inequalities among commonly used symmetric functions, except for complete homogeneous symmetric functions (shortened as CHs). In 2011, Cuttler, Greene, and Skandera posed a natural question: Can majorization also characterize inequalities among CHs? Their work demonstrated that majorization characterizes inequalities among CHs up to degree 7 and suggested exploring its validity for higher degrees. In this paper, we show that, for every degree greater than 7, majorization does not characterize inequalities among CHs.