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Solution of Shannon's problem on the monotonicity of entropy

Artstein, S.; Ball, K.M.; Barthe, F.; Naor, A.; (2004) Solution of Shannon's problem on the monotonicity of entropy. Journal of the American Mathematical Society , 17 (4) pp. 975-982. 10.1090/S0894-0347-04-00459-X. Green open access

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Abstract

It is shown that if X1, X2, . . . are independent and identically distributed square-integrable random variables then the entropy of the normalized sum Ent (X1+ · · · + Xn over √n) is an increasing function of n. This resolves an old problem which goes back to [6, 7, 5]. The result also has a version for non-identically distributed random variables or random vectors.

Type: Article
Title: Solution of Shannon's problem on the monotonicity of entropy
Open access status: An open access version is available from UCL Discovery
DOI: 10.1090/S0894-0347-04-00459-X
Publisher version: http://dx.doi.org/10.1090/S0894-0347-04-00459-X
Language: English
UCL classification: UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Mathematics
URI: https://discovery.ucl.ac.uk/id/eprint/12545
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