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A Remark on the Positive Definite Problem of a Binary Quartic Form 被引量:4
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作者 凌生智 《Chinese Quarterly Journal of Mathematics》 CSCD 1999年第1期43-46, ,共4页
In this paper,we discussed the positive definite problem of binary quartic forms and obtained a necessary and sufficient conditions.
关键词 positive definite binary quartic form negative definite
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Synchronization for complex dynamical Lurie networks
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作者 张晓娇 崔宝同 《Chinese Physics B》 SCIE EI CAS CSCD 2013年第10期154-161,共8页
This paper investigates the synchronization problem for two different complex dynamical Lurie networks, The first one is with constant coupling and the second one is with constant coupling and discrete-delay coupling.... This paper investigates the synchronization problem for two different complex dynamical Lurie networks, The first one is with constant coupling and the second one is with constant coupling and discrete-delay coupling. Based on contraction theory and matrix measure properties, some new delay-independent synchronization conditions depending on coupling strength and network topology are proposed. Finally, simulation results are presented to support the theoretical results. 展开更多
关键词 contraction theory virtual system partial contraction uniformly negative definite hybrid coupling
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