文章为了更深入地研究性传播疾病,在无标度网络上建立多群体的SIRS流行病模型.由阈值理论和方法证明出,当网络规模无穷大时,疾病在流行过程中不具有流行病阈值;而在有界的无标度网络上得出了平衡点的稳定性.
To more deeply study the sexually transmitted diseases,according to its charac- ter, we considered an SIRS model with multi--type on scale--free networks. The threshold value method was introduced in the model. The absence of a threshold in infinite scale--free network is proved. For a hard cut off scale--free network,we also analysis the stability of the equilibrium.