Nonlinear theories Congresses 14 Dynamics 10 Chaotic behavior in systems 9 System analysis 7 Stochastic processes 6 Finite element method 5 Mathematical physics 4 Data processing 3 Differential equations, Nonlinear 3 Integral equations 3 Mathematical analysis 3 Numerical analysis 3 Oscillations 3 Vibration 3 Control theory 2 Differentiable dynamical systems 2 Differential equations, Partial 2 Functional analysis 2 Geometry, Differential 2 Hamiltonian systems 2 Mathematical optimization 2 Mathematics 2 Plasma (Ionized gases) 2 Solitons 2 Stability 2 Algorithms 1 Atmospherics 1 Biography 1 Bolted joints 1