On minimal Hölder gaps and Shannon entropy balance

Author(s)
Immanuel Bomze
Abstract

When estimating a bilinear form in x and y by a product of two terms depending solely on x or y, the well known Hölder inequality which uses the product of a p-norm and its dual comes easily into play. However, if one can choose p freely, one could reduce this Hölder gap accordingly. This note addresses this elementary but apparently not too popular issue by using strict log-convexity of the p-norm in 1/p (sometimes called Littlewood's inequality). The optimal p is characterized by a balance condition on the Shannon entropies of distributions related to x and y.

Organisation(s)
Department of Statistics and Operations Research, Research Network Data Science
Journal
Portugaliae Mathematica
Volume
75
Pages
1-10
No. of pages
10
ISSN
0032-5155
DOI
https://doi.org/10.4171/PM/2009
Publication date
07-2018
Peer reviewed
Yes
Austrian Fields of Science 2012
101015 Operations research
Keywords
ASJC Scopus subject areas
Mathematics(all)
Portal url
https://ucris.univie.ac.at/portal/en/publications/on-minimal-hoelder-gaps-and-shannon-entropy-balance(06601b7b-e89f-487e-9cc6-6ec88dd13d86).html