Benchmark Problems for the Numerical Discretization of the Cahn–Hilliard Equation with a Source Term

Table 1

-norm of the errors and convergence rates of standard and isotropic schemes.

	Standard		Isotropic
	error	Order	error	Order
1/8
1/16		1.978		1.934
1/32		1.994		1.983
1/64		1.999		1.996