Local semicircle law under moment conditions: Stieltjes transform, rigidity and delocalization
Teoriâ veroâtnostej i ee primeneniâ, Tome 62 (2017) no. 1, pp. 72-103
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We consider a random symmetric matrix ${X} = [X_{jk}]_{j,k=1}^n$ where the upper triangular entries are independent identically distributed random variables with zero mean and unit variance. We additionally suppose that ${{E}} |X_{11}|^{4 + \delta} =: \mu_{4+\delta} \infty$ for some $\delta > 0$. Under these conditions we show that the typical distance between the Stieltjes transform of the empirical spectral distribution (ESD) of the matrix $n^{-1/2} X$ and Wigner's semicircle law is of order $(nv)^{-1}$, where $v$ is the distance in the complex plane to the real line. Furthermore, we outline applications such as the rate of convergence of the ESD to the distribution function of the semicircle law, rigidity of the eigenvalues, and eigenvector delocalization.
Mots-clés :
random matrices, Stieltjes transform.
Keywords: local semicircle law
Keywords: local semicircle law
@article{TVP_2017_62_1_a5,
author = {F. G\"otze and A. A. Naumov and A. N. Tikhomirov},
title = {Local semicircle law under moment conditions: {Stieltjes} transform, rigidity and delocalization},
journal = {Teori\^a vero\^atnostej i ee primeneni\^a},
pages = {72--103},
publisher = {mathdoc},
volume = {62},
number = {1},
year = {2017},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/TVP_2017_62_1_a5/}
}
TY - JOUR AU - F. Götze AU - A. A. Naumov AU - A. N. Tikhomirov TI - Local semicircle law under moment conditions: Stieltjes transform, rigidity and delocalization JO - Teoriâ veroâtnostej i ee primeneniâ PY - 2017 SP - 72 EP - 103 VL - 62 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TVP_2017_62_1_a5/ LA - ru ID - TVP_2017_62_1_a5 ER -
%0 Journal Article %A F. Götze %A A. A. Naumov %A A. N. Tikhomirov %T Local semicircle law under moment conditions: Stieltjes transform, rigidity and delocalization %J Teoriâ veroâtnostej i ee primeneniâ %D 2017 %P 72-103 %V 62 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TVP_2017_62_1_a5/ %G ru %F TVP_2017_62_1_a5
F. Götze; A. A. Naumov; A. N. Tikhomirov. Local semicircle law under moment conditions: Stieltjes transform, rigidity and delocalization. Teoriâ veroâtnostej i ee primeneniâ, Tome 62 (2017) no. 1, pp. 72-103. http://geodesic.mathdoc.fr/item/TVP_2017_62_1_a5/