A general framework of stochastic model for a multitype branching random walk in random environments is introduced.We consult the classification of the system under the codition that the branching process is not extinct.We also get the sufficient and necessarily conditions to ensure the transience or strong recurrence of the system is that there exist functions satisfy some properties defined on integer.Finally
we give the sufficient condition to ensure strong transience of the system.
关键词
随机环境多物种分枝随机游动暂留强暂留常返强常返
Keywords
random environmentsmultitypebranching random walktransientstrong transientrecurrencestrong recurrence