Sofic and hyperlinear profile comparison

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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.

References

Primary source

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

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