Journal
AUTOMATICA
Volume 41, Issue 5, Pages 881-888Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.automatica.2004.11.036
Keywords
global stabilization; finite-time convergence; Holder continuous state feedback; Lyapunov stability; uncertain nonlinear systems
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This paper studies the problem of finite-time stabilization for nonlinear systems. We prove that global finite-time stabilizability of uncertain nonlinear systems that are dominated by a lower-triangular system can be achieved by Holder continuous state feedback. The proof is based on the finite-time Lyapunov stability theorem and the nonsmooth feedback design method developed recently for the control of inherently nonlinear systems that cannot be dealt with by any smooth feedback. A recursive design algorithm is developed for the construction of a Holder continuous, global finite-time stabilizer as well as a C(1) positive definite and proper Lyapunov function that guarantees finite-time stability. (c) 2005 Elsevier Ltd. All rights reserved.
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