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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Liapunov method synthesis of time variable nonlinear multivariable systems, deriving simplified control law for tracking of linear noninteracting model
Interpretation of results obtained by Liapunov method, using parallelepiped imbedded in region of asymptotic stability
Existence of q-ary uniform convolutional codes where q is any prime-power, noting error- correcting ability comparable to familiar maximal- length block codes
Control system design for plants developed into engineering technique via direct method of Liapunov
Instability of periodic motions near collinear points of libration in plane restricted three- body problem examined with Liapunov theory
Invariance principle in Liapunovs stability theory
Stability of processes defined by stochastic difference and differential equations
Optimal nonlinear feedback control derived from quartic and higher order performance criteria
Combined effect of aerodynamic and gravity torques on stability of motion of passive satellites investigated by Liapunov direct method
Liapunov method for estimating statistical averages of randomly perturbed system
Liapunov theory of stochastic stability, discussing use to obtain information about random trajectories
Attitude stability of spinning rigid symmetric satellite in elliptic orbit examined for motion about equilibrium position with spin axis normal to orbit plane
Finite time stability of system trajectory under perturbing forces and within specified regions of state space
Interpretation of results obtained by Liapunov method, using parallelepiped imbedded in region of asymptotic stability
Frequency domain instability criteria generated from stability criteria for time varying and nonlinear feedback problems
Parameter stability regions with frequency response, noting interpretation for several parameters
Motion stability of earth-orbiting nonsymmetrical satellite with elastically-connected moving parts studied by Liapunov analysis on mathematical model
Synthesis technique applying Liapunov theory for state vector tracking of nonlinear multivariable control systems illustrated by reactor control design