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A Local Limit Theorem and Delocalization of Eigenvectors for Polynomials in Two Matrices

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 Added by Ching Wei Ho
 Publication date 2019
  fields
and research's language is English
 Authors Ching-Wei Ho




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We propose a boundary regularity condition for the $M_n(mathbb{C})$-valued subordination functions in free probability to prove the local limit theorem and delocalization of eigenvectors for polynomials in two random matrices. We prove this through estimating the pair of $M_n(mathbb{C})$-valued approximate subordination functions for the sum of two $M_n(mathbb{C})$-valued random matrices $gamma_1otimes C_N+gamma_2otimes U_N^*D_NU_N$, where $C_N$, $D_N$ are deterministic diagonal matrices, and $U_N$ is Haar unitary.



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