Complex Dynamics of Discrete SEIS Models with Simple Demography

Figure 4

Period doubling bifurcation of model (3.9). Parameter values are 𝑝=0.994, Λ=10, 𝛼=0.03, 𝛾=0.1, 𝑘₁=0.5, 𝑘₂=0.3, 𝑘₃=0.2, 𝑚=0.1, and𝛽₂=0.5.

(a)

(b)