This is a preview. Log in through your library . Abstract The numerical solution of initial value problems in ordinary differential equations by means of boundary value techniques is considered. We ...

We study the initial boundary value problem of semilinear hyperbolic equations utt – Δu = f(u) and semilinear parabolic equations ut – Δu = f(u) with critical initial data E(0) = d (or J(u₀) = d), ...