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A Non-abelian, Non-Sidon, Completely Bounded
$\Lambda (p)$ Set
Published online by Cambridge University Press: 26 February 2020
Abstract
The purpose of this note is to construct an example of a discrete non-abelian group G and a subset E of G, not contained in any abelian subgroup, that is a completely bounded $\Lambda (p)$ set for all
$p<\infty ,$ but is neither a Leinert set nor a weak Sidon set.
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- © Canadian Mathematical Society 2020
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