93Cxx Control systems
 93C05 Linear systems
 93C10 Nonlinear systems
 93C15 Systems governed by ordinary differential equations [See also 34H05]

93C20 Systems governed by partial differential equations
(1)
 93C23 Systems governed by functionaldifferential equations [See also 34K35]
 93C25 Systems in abstract spaces
 93C30 Systems governed by functional relations other than differential equations (such as hybrid and switching systems)
 93C35 Multivariable systems

93C40 Adaptive control
(1)
 93C41 Problems with incomplete information
 93C42 Fuzzy control systems
 93C55 Discretetime systems
 93C57 Sampleddata systems
 93C62 Digital systems
 93C65 Discrete event systems
 93C70 Timescale analysis and singular perturbations
 93C73 Perturbations
 93C80 Frequencyresponse methods
 93C83 Control problems involving computers (process control, etc.)
 93C85 Automated systems (robots, etc.) [See also 68T40, 70B15, 70Q05]
 93C95 Applications
 93C99 None of the above, but in this section