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arXiv 0705.1073math.DS
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代数数域上区间交换映射的几何表示

Geometric representation of interval exchange maps over algebraic number fields

G. Poggiaspalla, J. H. Lowenstein, F. Vivaldi

摘要:

我们考虑区间交换变换对代数数域的限制,这导致格上的映射。我们描述了可重整化算法,并研究了它与一个几何量的关系,我们称之为漂移向量。给出了具有零漂移向量和非零漂移向量的可重正化区间交换映射的一些例子,并对它们的性质进行了一些研究。特别是,我们寻找有限分解性质的证据:每个格是许多轨道的工会。

英文摘要:

We consider the restriction of interval exchange transformations to algebraic number fields, which leads to maps on lattices. We characterize renormalizability arithmetically, and study its relationships with a geometrical quantity that we call the drift vector. We exhibit some examples of renormalizable interval exchange maps with zero and non-zero drift vector, and carry out some investigations of their properties. In particular, we look for evidence of the finite decomposition property: each lattice is the union of finitely many orbits.

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