Probabilistic Averages of Jacobi Operators
Probabilistic Averages of Jacobi Operators
复制标题
雅可比算子的概率平均值
DOI:
10.1007/s00220-010-1014-y
复制
发表时间:
2009
影响因子:
2.4
通讯作者:
H. Krüger
中科院分区:
文献类型:
--
作者:
H. Krüger
I study the Lyapunov exponent and the integrated density of states for general Jacobi operators. The main result is that questions about these can be reduced to questions about ergodic Jacobi operators. I use this to show that for finite gap Jacobi operators, regularity implies that they are in the Cesàro–Nevai class, proving a conjecture of Barry Simon. Furthermore, I use this to study Jacobi operators with coefficients a(n) = 1 and b(n) = f(nρ (mod 1)) for ρ > 0 not an integer.