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
复制标题
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
中科院分区:
文献类型:
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作者:
Johannes Rueß
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.
DOI:
10.1214/10-aap724
发表时间:
2011
期刊:
The Annals of Applied Probability
影响因子:
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作者:
Kendall W
通讯作者:
Kendall W