Título: Examples of Convergence and Non-convergence of Markov Chains Conditioned Not To Die
Autores: Jacka, Saul; University of Warwick
Warren, Jon; University of Warwick
Fecha: 2002-01-01
Publicador: Electronic journal of probability
Fuente:
Tipo: Peer-reviewed Article

Tema: Mathematics
Conditioned Markov process, evanescent process, Martin boundary, Martin topology, superharmonic function, Choquet representation, star, Kolmogorov K2 chain
Primary: 60J50 Secondary: 60B10, 60G99, 60J27, 60J45, 60J55
Descripción: In this paper we give two examples of evanescent Markov chains which exhibit unusual behaviour on conditioning to survive for large times. In the first example we show that the conditioned processes converge vaguely in the discrete topology to a limit with a finite lifetime, but converge weakly in the Martin topology to a non-Markovian limit. In the second example, although the family of conditioned laws are tight in the Martin topology, they possess multiple limit points so that weak convergence fails altogether.
Idioma: Inglés

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