6533b831fe1ef96bd129866e

RESEARCH PRODUCT

Interior eigenvalue density of large bi-diagonal matrices subject to random perturbations

Johannes SjoestrandMartin Vogel

subject

Mathematics - Spectral Theory[ MATH ] Mathematics [math]MSC: 15B52 (47A10 47A55)FOS: Mathematics[MATH] Mathematics [math][MATH]Mathematics [math]Spectral Theory (math.SP)

description

We study the spectrum of large a bi-diagonal Toeplitz matrix subject to a Gaussian random perturbation with a small coupling constant. We obtain a precise asymptotic description of the average density of eigenvalues in the interior of the convex hull of the range symbol.

https://hal.science/hal-01680232