A Lie Symmetry Classification of a Nonlinear Fin Equation in Cylindrical Coordinates

Table 5

Commutation relations in Case  2.2.

[𝑋𝑖,𝑋𝑗]	𝑋1	𝑋2	𝑋3
𝑋1	0	−2𝑋2	0
𝑋2	2𝑋2	0	0
𝑋3	0	0	0