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Almost optimal bulk regularity conditions in the CLT for Wigner matrices

5 Pith papers cite this work. Polarity classification is still indexing.

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abstract

We consider linear spectral statistics of the form $\mathrm{tr} ( \varphi (H))$ for test functions $\varphi$ of low regularity and Wigner matrices $H$ with smooth entry distribution. We show that for functions $\varphi$ in the Sobolev space $H^{1/2+\varepsilon}$ or the space $C^{1/2+\varepsilon}$, that are supported within the spectral bulk of the semicircle distribution, these linear spectral statistics have asymptotic Gaussian fluctuations with the same variance as in the CLT for functions of higher regularity, for any $\varepsilon >0$.

years

2026 4 2023 1

representative citing papers

On a Rosenzweig-Porter-type model

math-ph · 2026-07-02 · accept · novelty 7.0

Uniform single- and two-resolvent local laws for arbitrary deformations of Wigner matrices yield ETH and localization profiles for all λ and H0.

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