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The forest associated with the record process on a L\'evy tree

Authors :
Abraham, Romain
Delmas, Jean-Francois
Source :
Stochastic Processes and their Applications 123 (2013) 3497-3517
Publication Year :
2012

Abstract

We perform a pruning procedure on a L\'evy tree and instead of throwing away the removed sub-tree, we regraft it on a given branch (not related to the L\'evy tree). We prove that the tree constructed by regrafting is distributed as the original L\'evy tree, generalizing a result where only Aldous's tree is considered. As a consequence, we obtain that the quantity which represents in some sense the number of cuts needed to isolate the root of the tree, is distributed as the height of a leaf picked at random in the L\'evy tree.

Subjects

Subjects :
Mathematics - Probability

Details

Database :
arXiv
Journal :
Stochastic Processes and their Applications 123 (2013) 3497-3517
Publication Type :
Report
Accession number :
edsarx.1204.2357
Document Type :
Working Paper