Boundary value problems Numerical solutions Finite element method 4 Decomposition (Mathematics) 2 Differential equations 2 Differential equations, Nonlinear 2 Differential equations, Partial 2 Hodge theory 2 Collocation methods 1 Data processing 1 Differential equations, Elliptic 1 Electrodynamics 1 Fixed point theory 1 Initial value problems 1 Integro-differential equations 1 Invariant imbedding 1 Mathematics 1 Multipliers (Mathematical analysis) 1 Partial differential equations, Elliptical 1 Singularities (Mathematics) 1 Spline theory 1 Wave equation 1