The converse Haagerup-property conjecture for locally compact wreath products
The converse Haagerup-property conjecture for locally compact wreath products
Let be locally compact groups, let act on a set , and suppose that all point stabilizers are commensurated subgroups of , with . Write for the corresponding permutational restricted wreath product, and for a point stabilizer write for the relative profinite completion.
Converse Haagerup-property conjecture. If has the Haagerup Property, then for every point stabilizer of , the relative profinite completion has the Haagerup Property.
This is proposed as the converse of the theorem giving sufficient conditions for the Haagerup Property of the wreath product. The source does not provide evidence of a resolution.
Sources & referencesView supporting material
Primary source
Yves Cornulier, “Locally compact wreath products”, arXiv:1703.08880 (2018).
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