報告人:劉建州 教授
報告題目:Accelerated Algorithms for Solving the Unified Algebraic Lyapunov Matrix Equation and Its Application in Stability of Perturbed Systems
報告時間:2025年12月20日(周六)下午3:00
報告地點:云龍校區6號樓304報告廳
主辦單位:數學與統計學院、數學研究院、科學技術研究院
報告人簡介:
劉建州,湘潭大學數學與計算科學學院二級教授、博士生導師。2016.1-2020.1任中國數學會常務理事,湖南省運籌學會副理事長,2005.1-2020.11任湖南省數學會常務理事、秘書長,現任湖南省運籌學會監事長,湖南省數學學會常務理事、監事。長期從事數值代數、線性代數及其應用,線性控制等方面的研究,主持國家自然科學基金面上項目4項,作為主要成員參加國家重點研發項目2項,主持部、省級自然科學基金10余項,已培養畢業博士、碩士研究生90余人,在國內外重要學術期刊《SIMA J. Matrix Anal. Appl.》、《IEEE Transactions on Fuzzy Systems》、《IEEE Transactions on Automatic Control》、《Automatica》《Linear Algebra Appl.》、《Science China Infomation sciences》、《數學學報》、《數學年刊》等發表術論文200余篇,其中SCI期刊100余篇。先后獲湖南省自然科學獎和湖南省高等教育教學成果二、三等獎多項,主編出版《實用數學建模教程》評為湖南省高等學校優秀教材。
報告摘要:
This paper establishes several equivalent conditions for a unique positive definite solution of the unified algebraic Lyapunov matrix equation(UALE).
Then, two iterative algorithms for the UALE driven by error precision are pro-posed, which can be accelerated by optimizing the calculation of series terms. The algorithm's convergence, computational complexity, and optimal parameter selection are discussed, supported by a series of numerical experiments that illustrate the effectiveness and superiority of our results.
Finally, by constructing a positive semi-definite matrix and employing matrix-singular inequality, a new robust bound for the unified perturbed system is derived, generalizing some of the existing results. Some numerical experiments demonstrate its practicality and advantage.