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Negative Association Does not Imply Log-Concavity of the Rank Sequence
Published online by Cambridge University Press: 14 July 2016
Abstract
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We present a minimum counterexample to the conjecture that a negatively associated random variable has an ultra-log-concave rank sequence. The rank sequence does not in fact even need to be unimodal.
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- Copyright © Applied Probability Trust 2007
References
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