Differential equations 21 Dissertations 20 Dissertations, Academic 19 Numerical solutions 17 Differential equations, Partial 10 Structural equation modeling 7 Differential equations, Nonlinear 5 Heat 5 Mathematical models 5 Mathematics 5 Differential equations, Linear 4 Fractional calculus 4 Homotopy theory 4 Data processing 3 Integral equations 3 Neural networks (Computer science) 3 Transmission 3 Analysis 2 Computational fluid dynamics 2 Delay differential equations 2 Difference equations 2 Differential equations, Elliptic 2 Equations 2 Finite differences 2 Fluid dynamics 2 Gibbs' equation 2 Inverse problems (Differential equations) 2 Knowledge management 2 Mathematical analysis 2 Mathematical optimization 2