Long-time asymptotic expansion for the damped semilinear wave equation

Asymptotic Expansion for Damped Wave Equations with Periodic Coefficients

Error estimates for well-balanced and time-split schemes on a damped semilinear wave equation

A posteriori L error estimates (in the sense of [12, 23]) are derived for both well-balanced (WB) and fractional-step (FS) numerical approximations of the unique weak solution of the Cauchy problem for the 1D semilinear damped wave equation. For setting up the WB algorithm, we proceed by rewriting it under the form of an elementary 2 × 2 system which linear convective structure allows to reduce...

Global Attractors for Damped Semilinear Wave Equations

The existence of a global attractor in the natural energy space is proved for the semilinear wave equation utt + βut − ∆u + f(u) = 0 on a bounded domain Ω ⊂ R with Dirichlet boundary conditions. The nonlinear term f is supposed to satisfy an exponential growth condition for n = 2, and for n ≥ 3 the growth condition |f(u)| ≤ c0(|u|γ + 1), where 1 ≤ γ ≤ n n−2 . No Lipschitz condition on f is assu...

Application of G'/G-expansion method to the (2+1)-dimensional dispersive long wave equation

In this work G'/G-expansion method has been employed to solve (2+1)-dimensional dispersive long wave equation. It is shown that G'/G-expansion method, with the help of symbolic computation, provides a very effective and powerful mathematical tool, for solving this equation.

Inertial manifolds of damped semilinear wave equations

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