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Xu-Guang Li, Silviu-Iulian Niculescu, Jun-Xiu Chen, and Tianyou Chai, “Characterizing PID controllers for linear time-delay systems: A parameter-space approach,” IEEE Transactions on Automatic Control, 66(10), 15 pages, 2021.（长文）.
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Xu-Guang Li, Silviu-Iulian Niculescu, Arben Çela, Lu Zhang, Xu Li, “A Frequency-Sweeping Framework for Stability Analysis of Time-Delay Systems, ” IEEE Transactions on Automatic Control, 62, 3701-3716, 2017..
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Lu Zhang, Xu-Guang Li, Zhi-Zhong Mao, Jun-Xiu Chen, and Gao-Xia Fan, “Some new algebraic and geometric analysis for local stability crossing curves,” Automatica, 123, Article 109312, 12 pages, 2021..
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Xu-Guang Li, Lu Zhang, Xu Li, Jun-Xiu Chen, “Colored stability crossing sets for SISO delay systems, ” IEEE Transactions on Automatic Control, 63(11), 4016-4023, 2018.
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Xu.-Guang. Li, Silviu.-Iulian. Niculescu, Arben. Çela, Hong.-Hai. Wang, and Tiao.-Yang. Cai, “Invariance properties for a class of quasipolynomials,” Automatica, 50, 890-895, 2014..
