Subcritical multitype Markov branching processes with immigration generated by Poisson random measures

Maroussia Slavtchova-Bojkova, Ollivier Hyrien and Nikolay M. Yanev

Communications in Statistics - Theory and Methods, 2024, vol. 53, issue 14, 5076-5091

Abstract: We investigate multitype subcritical Markov branching processes with immigration driven by Poisson random measures. Limiting distributions are established for various rates of the Poisson measures when they are asymptotically equivalent to exponential or regularly varying functions. Results analogous to a strong LLN are proved, and limiting normal distributions are obtained when the local intensity of the Poisson measure increases with time. When it decreases, conditional limiting distributions are established. When the intensity converges to a constant, a stationary limiting distribution is obtained. The asymptotic behavior of the first and second moments of the processes is also investigated.

Date: 2024
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DOI: 10.1080/03610926.2023.2205972

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