On aggregation of multitype Galton–Watson branching processes with immigration

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 wit...

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Main Authors: Mátyás Barczy, Fanni K. Nedényi, Gyula Pap
Format: Article
Language:English
Published: VTeX 2018-02-01
Series:Modern Stochastics: Theory and Applications
Subjects:
Online Access:https://vmsta.vtex.vmt/doi/10.15559/18-VMSTA95
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author Mátyás Barczy
Fanni K. Nedényi
Gyula Pap
author_facet Mátyás Barczy
Fanni K. Nedényi
Gyula Pap
author_sort Mátyás Barczy
collection DOAJ
description 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.
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spelling doaj.art-63c1151e570247559e7bece2cd897f1b2022-12-22T01:23:43ZengVTeXModern Stochastics: Theory and Applications2351-60462351-60542018-02-0151537910.15559/18-VMSTA95On aggregation of multitype Galton–Watson branching processes with immigrationMátyás Barczy0Fanni K. Nedényi1Gyula Pap2MTA-SZTE Analysis and Stochastics Research Group, Bolyai Institute, University of Szeged, Aradi vértanúk tere 1, H–6720 Szeged, HungaryBolyai Institute, University of Szeged, Aradi vértanúk tere 1, H–6720 Szeged, HungaryBolyai Institute, University of Szeged, Aradi vértanúk tere 1, H–6720 Szeged, HungaryLimit 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.https://vmsta.vtex.vmt/doi/10.15559/18-VMSTA95Multitype Galton–Watson branching processes with immigrationtemporal and contemporaneous aggregationgeneralized integer-valued autoregressive processes
spellingShingle Mátyás Barczy
Fanni K. Nedényi
Gyula Pap
On aggregation of multitype Galton–Watson branching processes with immigration
Modern Stochastics: Theory and Applications
Multitype Galton–Watson branching processes with immigration
temporal and contemporaneous aggregation
generalized integer-valued autoregressive processes
title On aggregation of multitype Galton–Watson branching processes with immigration
title_full On aggregation of multitype Galton–Watson branching processes with immigration
title_fullStr On aggregation of multitype Galton–Watson branching processes with immigration
title_full_unstemmed On aggregation of multitype Galton–Watson branching processes with immigration
title_short On aggregation of multitype Galton–Watson branching processes with immigration
title_sort on aggregation of multitype galton watson branching processes with immigration
topic Multitype Galton–Watson branching processes with immigration
temporal and contemporaneous aggregation
generalized integer-valued autoregressive processes
url https://vmsta.vtex.vmt/doi/10.15559/18-VMSTA95
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