A Generalized Nonuniform Contraction and Lyapunov Function

For nonautonomous linear equations x′=A(t)x, we give a complete characterization of general nonuniform contractions in terms of Lyapunov functions. We consider the general case of nonuniform contractions, which corresponds to the existence of what we call nonuniform (D,μ)-contractions. As an applic...

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Main Authors: Fang-fang Liao, Yongxin Jiang, Zhiting Xie
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:Abstract and Applied Analysis
Online Access:http://dx.doi.org/10.1155/2012/613038
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author Fang-fang Liao
Yongxin Jiang
Zhiting Xie
author_facet Fang-fang Liao
Yongxin Jiang
Zhiting Xie
author_sort Fang-fang Liao
collection DOAJ
description For nonautonomous linear equations x′=A(t)x, we give a complete characterization of general nonuniform contractions in terms of Lyapunov functions. We consider the general case of nonuniform contractions, which corresponds to the existence of what we call nonuniform (D,μ)-contractions. As an application, we establish the robustness of the nonuniform contraction under sufficiently small linear perturbations. Moreover, we show that the stability of a nonuniform contraction persists under sufficiently small nonlinear perturbations.
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institution Kabale University
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publishDate 2012-01-01
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series Abstract and Applied Analysis
spelling doaj-art-556d6ca31787493eb70a3559df4e1e122025-02-03T06:42:11ZengWileyAbstract and Applied Analysis1085-33751687-04092012-01-01201210.1155/2012/613038613038A Generalized Nonuniform Contraction and Lyapunov FunctionFang-fang Liao0Yongxin Jiang1Zhiting Xie2Nanjing College of Information Technology, Nanjing 210046, ChinaDepartment of Mathematics, College of Science, Hohai University, Nanjing 210098, ChinaDepartment of Mathematics, College of Science, Hohai University, Nanjing 210098, ChinaFor nonautonomous linear equations x′=A(t)x, we give a complete characterization of general nonuniform contractions in terms of Lyapunov functions. We consider the general case of nonuniform contractions, which corresponds to the existence of what we call nonuniform (D,μ)-contractions. As an application, we establish the robustness of the nonuniform contraction under sufficiently small linear perturbations. Moreover, we show that the stability of a nonuniform contraction persists under sufficiently small nonlinear perturbations.http://dx.doi.org/10.1155/2012/613038
spellingShingle Fang-fang Liao
Yongxin Jiang
Zhiting Xie
A Generalized Nonuniform Contraction and Lyapunov Function
Abstract and Applied Analysis
title A Generalized Nonuniform Contraction and Lyapunov Function
title_full A Generalized Nonuniform Contraction and Lyapunov Function
title_fullStr A Generalized Nonuniform Contraction and Lyapunov Function
title_full_unstemmed A Generalized Nonuniform Contraction and Lyapunov Function
title_short A Generalized Nonuniform Contraction and Lyapunov Function
title_sort generalized nonuniform contraction and lyapunov function
url http://dx.doi.org/10.1155/2012/613038
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AT yongxinjiang ageneralizednonuniformcontractionandlyapunovfunction
AT zhitingxie ageneralizednonuniformcontractionandlyapunovfunction
AT fangfangliao generalizednonuniformcontractionandlyapunovfunction
AT yongxinjiang generalizednonuniformcontractionandlyapunovfunction
AT zhitingxie generalizednonuniformcontractionandlyapunovfunction