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学术报告——高磊副教授:High-Accuracy Computations for Structured Matrices: Inverses and Determinants via Parametrization

发布日期:2025-09-29点击:

报告题目:High-Accuracy Computations for Structured Matrices: Inverses and Determinants via Parametrization

报告摘要:Structured matrices, including doubly strictly diagonally dominant (DSDD) Z-matrices and {P1, P2}-Nekrasov Z-matrices, are important in numerical linear algebra and scientific computing, but computing their inverses and determinants with high accuracy remains challenging. This talk introduces novel parametrization techniques that enable high-relative-accuracy computation of inverses for both DSDD and {P1, P2}-Nekrasov Z-matrices, as well as determinants for doubly B-matrices. Numerical experiments demonstrate the superior accuracy of the proposed methods over conventional approaches, highlighting their practical utility in solving linear systems and other matrix computations.

报告时间:20251010 10:30-11:30

报告地点:腾讯会议471-483-611

人:高磊 副教授

报告人简介:高磊,博士,延安大学副教授,硕士研究生导师,入选陕西省创新人才计划-青年科技新星陕西高校第三青年杰出人才支持计划陕西省科协青年人才托举计划,担任第十四届陕西省数学会青年工作委员会委员,美国数学会评论员;主要从事数值代数方向的研究。主持(完成)国家自然科学青年基金省科技厅项目7项;在J. Comput. Appl. Math.Appl. Math. Comput.Numer. Algor.CalcoloFront. Math. ChinaSci. Rep.、《高等学校计算数学学报》等国内外知名学术期刊发表研究论文40余篇,其中SCI检索30余篇,部分研究成果获陕西省工业与应用数学学会第五届青年优秀论文奖,宝鸡市第18届自然科学优秀学术成果一等奖。2023指导学生获陕西省第七届研究生创新成果展高质量成果奖1项。201811-20192月,赴新加坡南洋理工大学访问学习。


初审|李朝迁

审|鲁学伟

审|杨汉春




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