Rényi Entropy Power Inequalities via Normal Transport and Rotation
Keyword(s):
Following a recent proof of Shannon's entropy power inequality (EPI), a comprehensive framework for deriving various EPIs for the Rényi entropy is presented that uses transport arguments from normal densities and a change of variable by rotation. Simple arguments are given to recover the previously known Rényi EPIs and derive new ones, by unifying a multiplicative form with constant c and a modification with exponent α of previous works. In particular, for log-concave densities, we obtain a simple transportation proof of a sharp varentropy bound.
2012 ◽
Vol 26
(4)
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pp. 193-214
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2016 ◽
Vol 5
(1)
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pp. 1946-1962
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2017 ◽
Vol 25
(3)
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pp. 264-276
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Keyword(s):
2017 ◽
Vol 21
(1)
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pp. 51-68
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