Analysis of a Heroin Epidemic Model with Saturated Treatment Function

Figure 7

Illustration of validity of global stability condition. (a), (b), (c), and (d) represent a scenario where condition (67) holds true and global stability is predicted. (e), (f), (g), and (h) represent a scenario where condition (67) does not hold and oscillations are expected.

(a)

(b)

(c)

(d)

(e)

(f)

(g)

(h)