Tree based functional expansions for Feynman--Kac particle models
Idioma
en
Article de revue
Este ítem está publicado en
The Annals of Applied Probability. 2009p. 778–825
Institute of Mathematical Statistics (IMS)
Resumen en inglés
We design exact polynomial expansions of a class of Feynman--Kac particle distributions. These expansions are finite and are parametrized by coalescent trees and other related combinatorial quantities. The accuracy of the ...Leer más >
We design exact polynomial expansions of a class of Feynman--Kac particle distributions. These expansions are finite and are parametrized by coalescent trees and other related combinatorial quantities. The accuracy of the expansions at any order is related naturally to the number of coalescences of the trees. Our results include an extension of the Wick product formula to interacting particle systems. They also provide refined nonasymptotic propagation of chaos-type properties, as well as sharp $\mathbb{L}_p$-mean error bounds, and laws of large numbers for $U$-statistics.< Leer menos
Palabras clave en inglés
combinatorial enumeration
tree
forest
Feynman-Kac semigroups
interacting particle systems
Orígen
Importado de HalCentros de investigación