The Metric Entropy of Endomorphisms

被引:14
|
作者
Shu, Lin [1 ]
机构
[1] Peking Univ, Sch Math Sci, LMAM, Beijing 100871, Peoples R China
关键词
NEGATIVE LYAPUNOV EXPONENTS; FOLDING ENTROPY; DIMENSION; ATTRACTORS; FORMULA;
D O I
10.1007/s00220-009-0859-4
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We prove that, for a C (2) non-invertible but non-degenerate map on a compact Riemannian manifold without boundary, an invariant measure satisfies an equality relating entropy, folding entropy and negative Lyapunov exponents. This generalizes Ledrappier-Young's entropy formula [5] (for negative Lyapunov exponents of diffeomorphisms) to the case of endomorphisms.
引用
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页码:491 / 512
页数:22
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