Computational complexity of lyapunov stability analysis problems for a class of nonlinear systems

Marc W. Mcconley, Brent D. Appleby, Munther A. Dahleh, Eric Feron

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Nonlinear control systems can be stabilized by constructing control Lyapunov functions and computing the regions of state space over which such functions decrease along trajectories of the closed-loop system under an appropriate control law. This paper analyzes the computational complexity of these procedures for two classes of control Lyapunov functions. The systems considered are those which are nonlinear in only a few state variables and which may be affected by control constraints and bounded disturbances. This paper extends previous work by the authors, which develops a procedure for stability analysis for these systems whose computational complexity is exponential only in the dimension of the "nonlinear" states and polynomial in the dimension of the remaining states. The main results are illustrated by a numerical example for the case of purely quadratic control Lyapunov functions.
Original languageEnglish (US)
Pages (from-to)2176-2193
Number of pages18
JournalSIAM Journal on Control and Optimization
Volume36
Issue number6
DOIs
StatePublished - Jan 1 1998
Externally publishedYes

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