Operations Research Transactions ›› 2023, Vol. 27 ›› Issue (4): 20-32.doi: 10.15960/j.cnki.issn.1007-6093.2023.04.002

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S-lemma and its extension

Wenbao AI1,*(), Wei LIANG1, Mengxiao ZHANG1   

  1. 1. Key Laboratory of Mathematics and Information Networks, Ministry of Education, School of Science, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2023-04-28 Online:2023-12-15 Published:2023-12-07
  • Contact: Wenbao AI E-mail:aiwb@bupt.edu.cn

Abstract:

S-lemma is an important theorem in operations research and cybernetics. In this paper, starting from verifying the global asymptotic stability of a nonlinear control system, we draw S-procedure, S-lemma, and their relations and differences. Then the basic content of S-lemma and its latest advances are introduced. Moreover, several generalizations of S-lemma over the complex field and the quaternion set are discussed. Finally, some basic results corresponding to S-lemma are showed for any number of symmetric (or Hermitian) matrices.

Key words: S-procedure, S-lemma, Yuan's lemma, low-rank solutions

CLC Number: