Pinning weighted complex networks with heterogeneous delays by a small number of feedback controllers  

作　　者：XIANG LinYing LIU ZhongXin CHEN ZengQiang YUAN ZhuZhi 

机构地区：[1]Department of Automation, Nankai University, Tianjin 300071, China

出　　处：《Science in China(Series F)》2008年第5期511-523,共13页中国科学（F辑英文版）

基　　金：the National Natural Science Fundation of China (Grant Nos. 60774088 and 60574036);the Specialized Research Fund for the Doctoral Program of Higher Education of China (Grant No. 20050055013);and the Program for New Century Excellent Talents of China (NCET)

摘　　要：Weighted complex dynamical networks with heterogeneous delays in both continuous-time and discrete-time domains are controlled by applying local feedback injections to a small fraction of network nodes. Some generic stability criteria ensuring delay-independent stability are derived for such controlled networks in terms of linear matrix inequalities （LMIs）, which guarantee that by placing a small number of feedback controllers on some nodes the whole network can be pinned to some desired homogenous states. In some particular cases, a single controller can achieve the control objective. It is found that stabilization of such pinned networks is completely determined by the dynamics of the individual uncoupled node, the overall coupling strength, the inner-coupling matrix, and the smallest eigenvalue of the coupling and control matrix. Numerical simulations of a weighted network composing of a 3-dimensional nonlinear system are finally given for illustration and verification.Weighted complex dynamical networks with heterogeneous delays in both continuous-time and discrete-time domains are controlled by applying local feedback injections to a small fraction of network nodes. Some generic stability criteria ensuring delay-independent stability are derived for such controlled networks in terms of linear matrix inequalities （LMIs）, which guarantee that by placing a small number of feedback controllers on some nodes the whole network can be pinned to some desired homogenous states. In some particular cases, a single controller can achieve the control objective. It is found that stabilization of such pinned networks is completely determined by the dynamics of the individual uncoupled node, the overall coupling strength, the inner-coupling matrix, and the smallest eigenvalue of the coupling and control matrix. Numerical simulations of a weighted network composing of a 3-dimensional nonlinear system are finally given for illustration and verification.

关 键 词：complex dynamical network linear matrix inequality （LMI） weighted network pinning control hetero-geneous delay 

分 类 号：O231[理学—运筹学与控制论] TP273[理学—数学]