The Spectral Method for the Cahn-Hilliard Equation with Concentration-Dependent Mobility

Table 2

The error and the convergence order.

ℎ𝑘	err1(0.1,ℎ𝑘)	Order1	err2(0.1,ℎ𝑘)	Order2
0.1×10^−2	0.4748×10^−8	—	0.8864×10^−8	—
0.5×10^−3	0.8348×10^−9	2.5077	0.1577×10^−8	2.4907
0.25×10^−3	0.1370×10^−9	2.6069	0.2440×10^−9	2.6922
0.125×10^−3	0.2694×10^−10	2.3467	0.4457×10^−10	2.4525
0.625×10^−4	0.6398×10^−11	2.0741	0.1059×10^−10	2.0736