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arXiv 2301.02100math.PR
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正矩阵iid积的极限定理

Limit theorems for iid products of positive matrices

C Cuny, J Dedecker, F Merlevède

摘要:

研究了正矩阵iid积的范数上圈的随机性质。在矩或阶p > 2的最优条件下,得到了速率为O(n1/p)的几乎必然不变原理(ASIP);在3阶矩的最优条件下,得到了速率为O(1/ $\sqrt$ n)的Berry-Esseen定理.这些结果对矩阵范数也是有效的。对于矩阵系数,我们也有ASIP,但我们只得到部分结果的Berry-Esseen定理。证明利用耦合系数,令人惊讶地指数衰减到0,而只有一个多项式衰减的情况下,可逆矩阵。所有结果在矩阵的iid积保持不变的适当锥的情况下都是有效的。

英文摘要:

We study stochastic properties of the norm cocycle associated with iid products of positive matrices. We obtain the almost sure invariance principle (ASIP) with rate o(n 1/p) under the optimal condition of a moment or order p > 2 and the Berry-Esseen theorem with rate O(1/ $\sqrt$ n) under the optimal condition of a moment of order 3. The results are also valid for the matrix norm. For the matrix coefficients, we also have the ASIP but we obtain only partial results for the Berry-Esseen theorem. The proofs make use of coupling coefficients that surprisingly decay exponentially fast to 0 while there is only a polynomial decay in the case of invertible matrices. All the results are actually valid in the context of iid products of matrices leaving invariant a suitable cone.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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