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Entropy 2008, 10(4), 765-775; doi:10.3390/e10040765
Article
Non-linear Information Inequalities
Institute for Telecommunications Research, University of South Australia, Australia
* Author to whom correspondence should be addressed.
Received: 24 May 2008 / Accepted: 9 December 2008 / Published: 22 December 2008
(This article belongs to the Special Issue Concepts of Entropy and Their Applications - Papers presented at the Meeting at University of Melbourne, 26 November - 11 December 2007)
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Abstract: We construct non-linear information inequalities from Mat´uˇs’ infinite series of linear information inequalities. Each single non-linear inequality is sufficiently strong to prove that the closure of the set of all entropy functions is not polyhedral for four or more random variables, a fact that was already established using the series of linear inequalities. To the best of our knowledge, they are the first non-trivial examples of non-linear information inequalities.
Keywords: Entropy; entropy function; nonlinear information inequality; nonshannon type information inequality
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MDPI and ACS Style
Chan, T.; Grant, A. Non-linear Information Inequalities. Entropy 2008, 10, 765-775.
AMA StyleChan T, Grant A. Non-linear Information Inequalities. Entropy. 2008; 10(4):765-775.
Chicago/Turabian StyleChan, Terence; Grant, Alex. 2008. "Non-linear Information Inequalities." Entropy 10, no. 4: 765-775.