An 𝐻¹-Galerkin Expanded Mixed Finite Element Approximation of Second-Order Nonlinear Hyperbolic Equations

Figure 1

The figures of exact solution 𝑢 and numerical solution 𝑢_ℎ at 𝑡=0.5,1.0 ((a), (b) for 𝑢 and 𝑢_ℎ at 𝑡=1.0 and (c), (d) for 𝑢 and 𝑢_ℎ at 𝑡=0.5).

(a)

(b)

(c)

(d)