Sofic and hyperlinear profile comparison

From papers

Let GG be a sofic group. The sofic profile athcalDGsof(n)athcal{D}_{G}^{sof}(n) and hyperlinear profile athcalDGhyp(n)athcal{D}_{G}^{hyp}(n) are compared using the relation reccurlyeqreccurlyeq. The profile comparison conjecture.

DGsof(n)DGhyp(n).\mathcal{D}_{G}^{sof}(n)\preccurlyeq \mathcal{D}_{G}^{hyp}(n).

This would give the reverse asymptotic comparison to the known bound from sofic approximations into unitary groups. Its status is not resolved in the supplied text.

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Sources & referencesView supporting material

Primary source

Goulnara Arzhantseva and Pierre-Alain Cherix, “Quantifying metric approximations of discrete groups”, arXiv:2008.12954 (2020).

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