An Unconditionally Stable Positivity-Preserving Scheme for the One-Dimensional Fisher–Kolmogorov–Petrovsky–Piskunov Equation

Figure 13

(a, b) Numerical solution of with (a) and (b) . (c, d) Temporal evolution of the minimum and maximum of when (c) and (d) .

(a)

(b)

(c)

(d)