Geodesic
A Non-abelian, Non-Sidon, Completely Bounded $\Lambda (p)$ Set
Canadian mathematical bulletin, Tome 64 (2021) no. 1, pp. 1-7

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DOI

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.
DOI : 10.4153/S0008439520000144
Mots-clés : Completely bounded, Sidon set, non-amenable group 
Hare, Kathryn E.; Mohanty, Parasar. A Non-abelian, Non-Sidon, Completely Bounded $\Lambda (p)$ Set. Canadian mathematical bulletin, Tome 64 (2021) no. 1, pp. 1-7. doi: 10.4153/S0008439520000144
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     title = {A {Non-abelian,} {Non-Sidon,} {Completely} {Bounded} $\Lambda (p)$ {Set}},
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     year = {2021},
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