摘要
A new structure with the special property that catastrophes is imposed to ordinary Birth_Death processes is considered. The necessary and sufficient conditions of stochastically monotone, Feller and symmetric properties for the extended birth_death processes with catastrophes are obtained.
基金
SupportedbytheNationalNaturalScienceFoundation(198710 0 6 )
SupportedbytheScienceFoundationofGuangxiProvince(9912 0 0 8)