Approximate Symmetry Analysis of a Class of Perturbed Nonlinear Reaction-Diffusion Equations

Table 1

The commutator table of the approximate symmetries of the KPP equation.

[𝑋𝑖,𝑋𝑗]	𝑋1	𝑋2	𝑋3
𝑋1	0	0	0
𝑋2	0	0	𝑋2
𝑋3	0	−𝑋2	0