The Lyapunov spectrum of some parabolic systems

The Lyapunov spectrum of some parabolic systems
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DOI:
10.1017/s0143385708080462
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发表时间:
2007-09
影响因子:
0.9
通讯作者:
K. Gelfert;M. Rams
K. Gelfert;M. Rams
中科院分区:
数学2区
文献类型:
--
作者:
K. Gelfert;M. Rams

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摘要 我们研究了一类区间映射的李雅普诺夫指数的豪斯多夫维数,其中包括几种非双曲情况。我们还分析了具有给定下李雅普诺夫指数和上李雅普诺夫指数的点的水平集,特别是具有零下李雅普诺夫指数的点的水平集。我们证明零指数点的水平集具有完整的豪斯多夫维数,但不带有拓扑熵。
Abstract We study the Hausdorff dimension for Lyapunov exponents for a class of interval maps which includes several non-hyperbolic situations. We also analyze the level sets of points with given lower and upper Lyapunov exponents and, in particular, with zero lower Lyapunov exponent. We prove that the level set of points with zero exponent has full Hausdorff dimension, but carries no topological entropy.