Xin-Biao Lu

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The current interest in complex networks is a part of a broader movement towards research on complex systems. Motivation of this work raises the two challenging questions: (i) Are real networks fundamentally random preferential attached without any deterministic attachment for both un-weighted and weighted networks? (ii) Is there a coherent physical idea(More)
—This paper reports some Nyquist-type criteria for exponential/asymptotical stability in linear time-delayed systems of retarded type, by introducing contraposition seperators into the return difference ratio relationships in feedbacks. The Nyquist criteria present necessary and sufficient stability conditions, delays-dependent, which can be interpreted(More)
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