Numerical solutions Differential equations 40 Differential equations, Partial 32 Boundary value problems 13 Equations 9 Data processing 7 Differential equations, Elliptic 6 Finite element method 6 Mathematics 6 Integral equations 5 Iterative methods (Mathematics) 4 Approximation theory 3 Differential equations, Linear 3 Differential equations, Nonlinear 3 Differential equations, Parabolic 3 Hamilton-Jacobi equations 3 Hamiltonian systems 3 Inverse problems (Differential equations) 3 Lie groups 3 Mathematical models 3 Nonlinear theories 3 Numerical analysis 3 Numerical solutions. 0 3 Polynomials 3 Spectral theory (Mathematics) 3 Volterra equations 3 Asymptotic expansions 2 Collocation methods 2 Congresses 2 Conservation laws (Mathematics) 2