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Article Dans Une Revue Electronic Journal of Probability Année : 2014

Random stable looptrees

Résumé

We introduce a class of random compact metric spaces Lα indexed by α ∈ (1, 2) and which we call stable looptrees. They are made of a collection of random loops glued together along a tree structure, and can informally be viewed as dual graphs of α-stable Lévy trees. We study their properties and prove in particular that the Hausdorff dimension of Lα is almost surely equal to α. We also show that stable looptrees are universal scaling limits, for the Gromov–Hausdorff topology, of various combinatorial models. In a companion paper, we prove that the stable looptree of parameter 3 2 is the scaling limit of cluster boundaries in critical site-percolation on large random triangulations.
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hal-01316629 , version 1 (17-05-2016)

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Nicolas Curien, Igor Kortchemski. Random stable looptrees. Electronic Journal of Probability, 2014, 19, pp.1-35. ⟨10.1214/EJP.v19-2732⟩. ⟨hal-01316629⟩
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