CGLS method for ill-conditioned problem

发布时间:2024-06-01 点击次数:

标题:CGLS method for ill-conditioned problem

报告时间:2024年06月01日(星期六)20:15-21:00

报告地点:线上腾讯会议(会议ID: 971928112 密码: 6703)

主讲人:李科

主办单位:数学与统计学院

报告内容简介:

  In this take we explian how to use the conjugate gradient least squares (CGLS) algorithm in block forms for ill-condiioned linear system. We explore the applicaiton of CGLS so that multiple right-hand sides can be treated simultaneously, while maintaining orthogonality and minimization properties along iterations.  Numerical examples demonstrate effectiveness in handling rank deficiency and efficiency in convergence accelerations in these forms.

主讲人简介:

  李科教授主要从事石油工程中的数学问题研究,研究领域涉及石油工程建模以及相关数学问题的数值计算。近年来在大规模线性代数问题数值求解方程取得了一些创新研究成果。