scholarly journals Clustering Complex Zeros of Triangular Systems of Polynomials

2020 ◽  
Author(s):  
Rémi Imbach ◽  
Marc Pouget ◽  
Chee Yap
Keyword(s):  
Triangular Systems ◽  
Complex Zeros

Further results on output-feedback stabilization of stochastic upper-triangular systems with state and input time-delays

2017 ◽  
Vol 40 (7) ◽  
pp. 2408-2415 ◽  
Author(s):  
Liang Liu ◽  
Shengyuan Xu ◽  
Xuejun Xie ◽  
Bing Xiao
Keyword(s):  
Output Feedback ◽  
Time Delays ◽  
Delay System ◽  
Feedback Stabilization ◽  
System Stability ◽  
Output Feedback Stabilization ◽  
Triangular Systems ◽  
Reduced Order Observer ◽  
Input Time ◽  
Stochastic Time

Based on stochastic time-delay system stability criterion and a homogeneous domination approach, the output-feedback stabilization problem for a class of more general stochastic upper-triangular systems with state and input time-delays has been solved in this paper. Firstly, the initial system is changed into an equivalent one with a designed scalar by introducing a set of coordinate transformations. After that, by designing an implementable homogeneous reduced-order observer, and tactfully selecting a suitable Lyapunov–Krasoviskii functional and a low gain scale, a delay-independent output-feedback controller is explicitly constructed. Finally, the globally asymptotically stability in probability of the closed-loop system is ensured by rigorous proof. The simulation results demonstrate the efficiency of the proposed design scheme.

scholarly journals Complex zeros of real ergodic eigenfunctions

2006 ◽  
Vol 167 (2) ◽  
pp. 419-443 ◽  
Author(s):  
Steve Zelditch
Keyword(s):  
Complex Zeros

scholarly journals Observer Design for Triangular Systems Under Weak Observability Assumptions

2018 ◽  
Vol 63 (12) ◽  
pp. 4156-4171 ◽  
Author(s):  
Dionysios Theodosis ◽  
Dimitris Boskos ◽  
John Tsinias
Keyword(s):  
Observer Design ◽  
Triangular Systems
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