Numerical solutions Differential equations 5 Boundary value problems 4 Differential equations, Partial 4 Congresses 2 Finite element method 2 Approximation theory 1 Boundary element methods 1 Data processing 1 Differential equations, Nonlinear 1 Finite differences 1 Initial value problems 1 Integral equations 1 Invariant imbedding 1 Navier-Stokes equations 1 Nonlinear boundary value problems 1 Numerical grid generation (Numerical analysis) 1 Perturbation (Mathematics) 1 Singular perturbations (Mathematics) 1 Stiff computation (Differential equations) 1 Viscous flow 1 Volterra equations 1