Realization of the amenable radical by a random-walk subgroup

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Let GG be a finitely generated group. For a probability measure μ\mu on GG, let AμA_\mu denote the associated subgroup, and let the amenable radical be the largest amenable normal subgroup of GG. Amenable-radical realization conjecture. There exists some probability measure μ\mu on GG such that

Aμ=the amenable radical of G.A_\mu=\text{the amenable radical of }G.

This is presented as a stronger or more desirable formulation concerning whether the amenable radical can be exactly recovered from a suitable random walk. The supplied text does not specify additional conditions on μ\mu or give evidence that the conjecture has been resolved.

References

Primary source

Murray Elder and Cameron Rogers, “On a theorem of Avez”, arXiv:1605.04065 (2017).

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