Central limit theorem for bifurcating markov chains under L2-ergodic conditions
Autor: | S. Valère Bitseki Penda, Jean-François Delmas |
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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 |
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