中文

独立非厄米随机矩阵的乘积

概率论 2014-08-18 v3 数学物理 math.MP

摘要

对于固定的 m>1m>1,我们考虑 mm 个独立的 n×nn \times n 非厄米随机矩阵 X1,...,XmX_1, ..., X_m,其元素独立同分布,均值为零,且具有有限的 (2+η)(2+\eta) 阶矩,η>0\eta>0。当 nn 趋于无穷时,我们证明 nm/2X1X2...Xmn^{-m/2} X_1 X_2 ... X_m 的经验谱分布以概率 1 收敛到一个非随机的、旋转不变的分布,该分布在复平面上具有紧支撑。极限分布是圆律的 mm 次幂。

关键词

引用

@article{arxiv.1012.4497,
  title  = {Products of Independent Non-Hermitian Random Matrices},
  author = {Sean O'Rourke and Alexander Soshnikov},
  journal= {arXiv preprint arXiv:1012.4497},
  year   = {2014}
}

备注

The paper is accepted for publication in Electronic Journal of Probability. In the final version we fixed a small technical gap in the proofs of Theorem 15 and Lemma 19 and added the reference to the 2009 paper by Girko and Vladimirova