Spectral and Dynamical Properties of Certain Random Jacobi Matrices with Growing Parameters

Details Spectral and Dynamical Properties of Certain Random Jacobi Matrices with Growing Parameters Spectral and Dynamical Properties of Certain Random Jacobi Matrices with Growing Parameters

2007-08-05

arxiv.org/abs/0708.0670v2

Mathematics

Spectral Theory

26 pages, some typos corrected and some remarks added

Scientific paper

In this paper, a family of random Jacobi matrices, with off-diagonal terms that exhibit power-law growth, is studied. Since the growth of the randomness is slower than that of these terms, it is possible to use methods applied in the study of Schr\"odinger operators with random decaying potentials. A particular result of the analysis is the existence of operators with arbitrarily fast transport whose spectral measure is zero dimensional. The results are applied to the infinite Gaussian $\beta$ Ensembles and their spectral properties are analyzed.

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