 Disease-free equilibrium of the susceptible-infective model with exponential birth

ID: disease-free-equilibrium-of-the-susceptible-infective-model-with-exponential-birth

Codex  0 Created 2026-09-24 Updated 2026-09-24

For

b > d

(S, I) = (\frac{1}{a} lo g \frac{b}{d}, 0) .

It is linearly unstable precisely when

\frac{1}{a} lo g \frac{b}{d} > \frac{d + δ}{β} .

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