Numerical solutions 9 Differential equations 7 Mathematics 7 Differential equations, Partial 6 Quantum computers 5 Fuzzy systems 4 Mathematical models 4 Nonlinear control theory 4 Quantum theory 4 Soft computing 4 Numerical integration 3 Systems engineering 3 Algebras, Linear 2 Calculus of variations 2 Control theory 2 Estimation theory 2 Exact (philosophy) 2 Invariant subspaces 2 Inverse problems (Differential equations) 2 Lie groups 2 Matrices 2 Methodology 2 Nonlinear theories 2 Stochastic partial differential equations 2 System analysis 2 Computer-assisted instruction 1 Differential equations, Parabolic 1 Evolution equations 1 Finite element method 1 Fluid dynamics 1