Homogenenous Multitype Fragmentations - Archive ouverte HAL Access content directly
Preprints, Working Papers, ... Year : 2006

Homogenenous Multitype Fragmentations

Abstract

A homogeneous mass-fragmentation, as it has been defined in \cite{RFC}, describes the evolution of the collection of masses of fragments of an object which breaks down into pieces as time passes. Here, we show that this model can be enriched by considering also the types of the fragments, where a type may represent, for instance, a geometrical shape, and can take finitely many values. In this setting, the dynamics of a randomly tagged fragment play a crucial role in the analysis of the fragmentation. They are determined by a Markov additive process whose distribution depends explicitly on the characteristics of the fragmentation. As applications, we make explicit the connexion with multitype branching random walks, and obtain multitype analogs of the pathwise central limit theorem and large deviation estimates for the empirical distribution of fragments.
Fichier principal
Vignette du fichier
multitype.pdf (273.9 Ko) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

hal-00121940 , version 1 (22-12-2006)

Identifiers

Cite

Jean Bertoin. Homogenenous Multitype Fragmentations. 2006. ⟨hal-00121940⟩
186 View
114 Download

Altmetric

Share

Gmail Facebook X LinkedIn More