Sofic-approximation independence of lp-dimension for amenable groups

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Let Γ\Gamma be an amenable group, let Σ\Sigma and Σ′\Sigma' be two sofic approximations of Γ\Gamma, and let XX be a uniformly bounded representation of Γ\Gamma. Approximation-independence conjecture.

dim⁡Σ,lp(X,Γ)=dim⁡Σ′,lp(X,Γ).\dim_{\Sigma,l^{p}}(X,\Gamma)=\dim_{\Sigma',l^{p}}(X,\Gamma).

This conjecture asks whether the sofic lpl^{p}-dimension of a uniformly bounded representation is independent of the chosen sofic approximation for amenable groups. The source presents it as a natural conjecture based on the techniques developed in the paper.

References

Primary source

Ben Hayes, “An l^p-Version of von Neumann Dimension for Banach Space Representation of Sofic Groups II”, arXiv:1302.2286 (2015).

Additional references

2 papers in this index state this conjecture (2011–2013). The statement above is taken from the most recent of them; the others are arXiv:1110.5390.

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