Reference : Counting curves, and the stable length of currents
 Document type : E-prints/Working papers : Already available on another site Discipline(s) : Physical, chemical, mathematical & earth Sciences : Mathematics To cite this reference: http://hdl.handle.net/10993/30053
 Title : Counting curves, and the stable length of currents Language : English Author, co-author : Erlandsson, Viveka [> >] Parlier, Hugo [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Mathematics Research Unit] Souto, Juan [> >] Publication date : 1-Dec-2016 Peer reviewed : Yes Keywords : [en] Mathematics - Geometric Topology ; Mathematics - Differential Geometry ; Mathematics - Dynamical Systems ; Mathematics - Group Theory Abstract : [en] Let $\gamma_0$ be a curve on a surface $\Sigma$ of genus $g$ and with $r$ boundary components and let $\pi_1(\Sigma)\curvearrowright X$ be a discrete and cocompact action on some metric space. We study the asymptotic behavior of the number of curves $\gamma$ of type $\gamma_0$ with translation length at most $L$ on $X$. For example, as an application, we derive that for any finite generating set $S$ of $\pi_1(\Sigma)$ the limit $$\lim_{L\to\infty}\frac 1{L^{6g-6+2r}}\{\gamma\text{ of type }\gamma_0\text{ with }S\text{-translation length}\le L\}$$ exists and is positive. The main new technical tool is that the function which associates to each curve its stable length with respect to the action on $X$ extends to a (unique) continuous and homogenous function on the space of currents. We prove that this is indeed the case for any action of a torsion free hyperbolic group. Permalink : http://hdl.handle.net/10993/30053 Other URL : http://esoads.eso.org/abs/2016arXiv161205980E Commentary : 28 pages, 6 figures source URL : https://arxiv.org/abs/1612.05980

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