Explicit Multistep Mixed Finite Element Method for RLW Equation

Table 6

Convergence order and error in 𝐿² norm for 𝑢 of space with Δ𝑡=0.01 and 𝑐=0.1.

Time	ℎ=0.8	ℎ=0.4	ℎ=0.2	Order (0.4/0.8)	Order (0.2/0.4)
4	1.7109𝑒−003	4.2677𝑒−004	1.1449𝑒−004	1.9940	1.8982
8	1.8945𝑒−003	4.6862𝑒−004	1.1924𝑒−004	2.0195	1.9746
12	2.1232𝑒−003	5.2130𝑒−004	1.3025𝑒−004	2.0102	2.0008
16	2.3559𝑒−003	5.7598𝑒−004	1.4421𝑒−004	2.0589	1.9978
20	2.5778𝑒−003	6.3407𝑒−004	1.7877𝑒−004	2.0358	1.8265