On aggregation of multitype Galton–Watson branching processes with immigration

Autor: Mátyás Barczy, Fanni K. Nedényi, Gyula Pap
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Modern Stochastics: Theory and Applications, Vol 5, Iss 1, Pp 53-79 (2018)
Druh dokumentu: article
ISSN: 2351-6046
2351-6054
DOI: 10.15559/18-VMSTA95
Popis: Limit behaviour of temporal and contemporaneous aggregations of independent copies of a stationary multitype Galton–Watson branching process with immigration is studied in the so-called iterated and simultaneous cases, respectively. In both cases, the limit process is a zero mean Brownian motion with the same covariance function under third order moment conditions on the branching and immigration distributions. We specialize our results for generalized integer-valued autoregressive processes and single-type Galton–Watson processes with immigration as well.
Databáze: Directory of Open Access Journals