Continuity Results and Estimates for the Lyapunov Exponent of Brownian Motion in Random Potential

Continuity Results and Estimates for the Lyapunov Exponent of Brownian Motion in Random Potential
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随机势中布朗运动李亚普诺夫指数的连续性结果和估计

DOI:
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发表时间:
2014
期刊:
影响因子:
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通讯作者:
Johannes Rueß
Johannes Rueß
中科院分区:
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文献类型:
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作者:
Johannes Rueß

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我们收集了 Schr\"oder (1988) 和 Rue\ss (2013) 建立的变分公式的一些应用,用于静止和遍历非负势中布朗运动的猝灭 Lyapunov 指数。例如,我们表明,非确定性势的 Lyapunov 指数严格低于平均势的 Lyapunov 指数。在底层的独立扰动下,Lyapunov 指数的行为在反例的帮助下,我们能够详细描述李雅普诺夫指数的连续性性质。
We collect some applications of the variational formula established by Schr\"oder (1988) and Rue\ss (2013) for the quenched Lyapunov exponent of Brownian motion in stationary and ergodic nonnegative potential. We show for example that the Lyapunov exponent for nondeterministic potential is strictly lower than the Lyapunov exponent for the averaged potential. The behaviour of the Lyapunov exponent under independent perturbations of the underlying potential is examined. And with the help of counterexamples we are able to give a detailed picture of the continuity properties of the Lyapunov exponent.
泊松城市中的测地线和流动
DOI: 10.1214/10-aap724
发表时间: 2011
期刊: The Annals of Applied Probability
影响因子: --
作者:
Kendall W
通讯作者: Kendall W