Control theory 67 Mathematical optimization 18 Automatic control 13 Stochastic control theory 9 Control theory-- Optimal control 7 Nonlinear control theory 7 Calculus of variations 6 Mathematical models 6 Chaotic behavior in systems 4 Fuzzy systems 4 Mathematics 4 Stochastic processes 4 Systems engineering 4 Congresses 3 Control theory.1 3 Discrete-time systems 3 Dynamics 3 Functional analysis 3 Hamiltonian systems 3 Information theory 3 System analysis 3 System theory 3 Dictionaries 2 Estimation theory 2 Feedback control systems 2 Fuzzy sets 2 Linear control systems 2 Linear systems 2 Linguistics 2 Markov processes 2