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arXiv 1208.0629math.DGmath.PR
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嵌入叶状流形中的调和测度

Harmonic measures in embedded foliated manifolds

Pedro J. Catuogno, Diego S. Ledesma, Paulo R. Ruffino

摘要:

研究等距嵌入欧几里得空间中的叶状紧致黎曼流形中的调和测度和全不变测度。我们介绍几何技术随机分析在这个空间。特别地,使用这些技术,我们可以明确地构造层状布朗运动的Stratonovich方程(参见。L. Garnett \cite{LG}等)。我们给出了全不变测度的一个刻画,刻画了与该方程相关的全同态流。我们证明了一个遍历公式的总和的李雅普诺夫指数的几何形状的叶子。

英文摘要:

We study harmonic and totally invariant measures in a foliated compact Riemannian manifold isometrically embedded in an Euclidean space. We introduce geometrical techniques for stochastic calculus in this space. In particular, using these techniques we can construct explicitely an Stratonovich equation for the foliated Brownian motion (cf. L. Garnett \cite{LG} and others). We present a characterization of totally invariant measures in terms of the flow of diffeomorphisms of associated to this equation. We prove an ergodic formula for the sum of the Lyapunov exponents in terms of the geometry of the leaves.

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