For sums of G-independent semicircle variables, the operator norm is bounded by 2√ω(G) and is exactly the spectral radius of the Cayley graph of the associated trace monoid.
Central limit theorem for $\epsilon$-independent products and higher-order tensors
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abstract
We establish a central limit theorem (CLT) for families of products of $\epsilon$-independent random variables. We utilize graphon limits to encode the evolution of independence and characterize the limiting distribution. Our framework subsumes a wide class of dependency structures and includes, as a special case, a CLT for higher-order tensor products of free random variables. Our results extend earlier findings and recover as a special case a recent tensor-free CLT, which was obtained through the development of a tensor analogue of free probability. In contrast, our approach is more direct and provides a unified and concise derivation of a more general CLT via graphon convergence.
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Khintchine inequalities, trace monoids and Tur\'an-type problems
For sums of G-independent semicircle variables, the operator norm is bounded by 2√ω(G) and is exactly the spectral radius of the Cayley graph of the associated trace monoid.