一类具有媒体效应和追踪隔离的SIQR时滞传染病模型

张钰倩,张太雷,侯雯珊,宋学力

A delayed SIQR epidemic model with media effect and tracking quarantine

Yuqian ZHANG,Tailei ZHANG,Wenshan HOU,Xueli SONG

图4 当τ=12.5时式（2）出现分支周期解

Fig.4 The branching periodic solution of system （2） appears when τ=12.5