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(qū)6號樓304報告廳
主辦單位:數(shù)學(xué)與統(tǒng)計學(xué)院、數(shù)學(xué)研究院、科學(xué)技術(shù)研究院
報告人簡介:
劉建州,湘潭大學(xué)數(shù)學(xué)與計算科學(xué)學(xué)院二級教授、博士生導(dǎo)師。2016.1-2020.1任中國數(shù)學(xué)會常務(wù)理事,湖南省運籌學(xué)會副理事長,2005.1-2020.11任湖南省數(shù)學(xué)會常務(wù)理事、秘書長,現(xiàn)任湖南省運籌學(xué)會監(jiān)事長,湖南省數(shù)學(xué)學(xué)會常務(wù)理事、監(jiān)事。長期從事數(shù)值代數(shù)、線性代數(shù)及其應(yīng)用,線性控制等方面的研究,主持國家自然科學(xué)基金面上項目4項,作為主要成員參加國家重點研發(fā)項目2項,主持部、省級自然科學(xué)基金10余項,已培養(yǎng)畢業(yè)博士、碩士研究生90余人,在國內(nèi)外重要學(xué)術(shù)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(shù)學(xué)學(xué)報》、《數(shù)學(xué)年刊》等發(fā)表術(shù)論文200余篇,其中SCI期刊100余篇。先后獲湖南省自然科學(xué)獎和湖南省高等教育教學(xué)成果二、三等獎多項,主編出版《實用數(shù)學(xué)建模教程》評為湖南省高等學(xué)校優(yōu)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.