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A non-abelian, non-Sidon, completely bounded $Λ(p)$ set
Published 18 Oct 2019 in math.FA | (1910.08377v1)
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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