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Ergodic invariant measures on the space of geodesic currents

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 نشر من قبل Viveka Erlandsson
 تاريخ النشر 2018
  مجال البحث
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Let $S$ be a compact, connected, oriented surface, possibly with boundary, of negative Euler characteristic. In this article we extend Lindenstrauss-Mirzakhanis and Hamenstadts classification of locally finite mapping class group invariant ergodic measures on the space of measured laminations $mathcal{M}mathcal{L}(S)$ to the space of geodesic currents $mathcal{C}(S)$, and we discuss the homogeneous case. Moreover, we extend Lindenstrauss-Mirzakhanis classification of orbit closures to $mathcal{C}(S)$. Our argument relies on their results and on the decomposition of a current into a sum of three currents with isotopically disjoint supports: a measured lamination without closed leaves, a simple multi-curve and a current that binds its hull.

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