摘要：In this paper, a general hybrid epidemic model with multiple and non-periodic pulses in an environmental period is investigated. The definition and computation for the basic reproductive number R 0 $R_($ are established. The published periodic research model (Yang, Xiao in Nonlinear Anal., Real World Appl. 52:224–234, 2012) can be considered as a special case of the new established model.
关键词：Hybrid system ; Basic reproductive number ; Next infection operator
