Central limit theorem for bifurcating markov chains under L2-ergodic conditions

Autor: S. Valère Bitseki Penda, Jean-François Delmas
Rok vydání: 2022
Předmět:
Zdroj: Advances in Applied Probability. 54:999-1031
ISSN: 1475-6064
0001-8678
DOI: 10.1017/apr.2022.3
Popis: Bifurcating Markov chains (BMCs) are Markov chains indexed by a full binary tree representing the evolution of a trait along a population where each individual has two children. We provide a central limit theorem for additive functionals of BMCs under $L^2$ -ergodic conditions with three different regimes. This completes the pointwise approach developed in a previous work. As an application, we study the elementary case of a symmetric bifurcating autoregressive process, which justifies the nontrivial hypothesis considered on the kernel transition of the BMCs. We illustrate in this example the phase transition observed in the fluctuations.
Databáze: OpenAIRE