Translated Poisson Approximation to Equilibrium Distributions of Markov Population Processes |
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Authors: | Sanda N Socoll A D Barbour |
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Institution: | 1.Institut für Mathematik,Universit?t Zürich-Irchel,Zürich,Switzerland |
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Abstract: | The paper is concerned with the equilibrium distributions of continuous-time density dependent Markov processes on the integers. These distributions are known typically to be approximately normal, with \(O( 1 /{\sqrt{n}})\) error as measured in Kolmogorov distance. Here, an approximation in the much stronger total variation norm is established, without any loss in the asymptotic order of accuracy; the approximating distribution is a translated Poisson distribution having the same variance and (almost) the same mean. Our arguments are based on the Stein–Chen method and Dynkin’s formula. |
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