Critical multitype branching processes in a~random environment

E. E. D'yakonova

Diskretnaya Matematika, Tome 19 (2007) no. 4, pp. 23-41.

Résumé

We investigate a multitype Galton–Watson process in a random environment generated by a sequence of independent identically distributed random variables. Assuming that the associated random walk constructed by the logarithms of the Perron roots of the reproduction mean matrices satisfies Spitzer's condition, we find the asymptotics of the survival probability at time $n$ as $n\to\infty$.

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