Explicit Multistep Mixed Finite Element Method for RLW Equation

Table 2

Convergence order and error in 𝐿² norm for 𝑢 of time with ℎ=0.125 and 𝑐=0.1.

Time	Δ𝑡=0.4	Δ𝑡=0.2	Δ𝑡=0.1	Order (0.2/0.4)	Order (0.1/0.2)
4	5.3805𝑒−003	1.4267𝑒−003	3.6304𝑒−004	1.9151	1.9745
8	1.1688𝑒−002	2.9411𝑒−003	7.2873𝑒−004	1.9906	2.0129
12	1.7830𝑒−002	4.3997𝑒−003	1.0817𝑒−003	2.0188	2.0241
16	2.3751𝑒−002	5.7916𝑒−003	1.4186𝑒−003	2.0360	2.0295
20	2.9434𝑒−002	7.1148𝑒−003	1.7396𝑒−003	2.0486	2.0321