Asymptotics of Markov Additive Chains on a Half-Plane: A Ratio Limit Theorem
Autor: | Aziz Khanchi |
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Rok vydání: | 2011 |
Předmět: | |
Zdroj: | Journal of Theoretical Probability. 25:62-76 |
ISSN: | 1572-9230 0894-9840 |
DOI: | 10.1007/s10959-011-0384-1 |
Popis: | Consider a Markov additive chain (V,Z) with a negative horizontal drift on a half-plane. We provide the limiting distribution of Z when V passes a threshold for the first time, as V tends to infinity. Our contribution is to allow the Markovian part of an associated twisted Markov chain to be null recurrent or transient. The positive recurrent case was treated by Kesten [Ann. Probab. 2 (1974), 355–386]. Moreover, a ratio limit will be established for a transition kernel with unbounded jumps. |
Databáze: | OpenAIRE |
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