Some entropy properties of discrete random variables

40 mins 45 secs,  155.81 MB,  iPod Video  480x270,  29.97 fps,  44100 Hz,  522.03 kbits/sec
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Description: Johnson, O
Thursday 26th July 2018 - 09:45 to 10:30
 
Created: 2018-07-27 16:33
Collection: Mathematical Challenges in Quantum Information
Publisher: Isaac Newton Institute
Copyright: Johnson, O
Language: eng (English)
Distribution: World     (downloadable)
Explicit content: No
Aspect Ratio: 16:9
Screencast: No
Bumper: UCS Default
Trailer: UCS Default
 
Abstract: It is well-known that Gaussian random variables have many attractive properties: they are maximum entropy, they are stable under addition and scaling, they give equality in the Entropy Power Inequality (and hence give sharp log-Sobolev inequalities) and have good entropy concavity properties. I will discuss the extent to which results of this kind can be formulated for discrete random variables, and how they relate to ideas of discrete log-concavity.
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