孙海卫教授的招生宣讲与学术报告

发布时间:2015年11月02日 作者:唐颖   消息来源:科研办    阅读次数:[]

报告时间:2015年11月5日下午4:00至5:30  

报告人:Professor Hai-Wei Sun (孙海卫教授,澳门大学数学系)  

报告题目:Fast Algorithms for Block Triangular Toeplitz Matrix with Applications to Time-Fractional Partial Differential Equations   

报告摘要:  

A fast approximate inversion method is proposed for the block lower triangular Toeplitz with tri-diagonal blocks (BL3TB) matrix. The BL3TB matrix is approximated by a block circulant-like matrix, which can be efficiently inverted using the fast Fourier transforms. The good approximation is proved under a certain condition. As applications, the discretized matrix by a finite difference method for the fractional sub-diffusion equation is shown as a BL3TB matrix and satisfies this condition. Therefore, the proposed method can be efficiently applied to find the numerical solution of the fractional sub-diffusion equation. Numerical experiments are carried out to demonstrate the excellence performance of the proposed methods.   

通知:孙教授的课题组有意在中南大学数学与统计学院招收优秀的本科毕业生直博、优秀硕士研究生继续攻读博士学位以及博士后研究人员。澳门大学将对研究生、博士生以及博士后提供非常优厚的待遇。联系方式与研究方向详见数学与统计学院一楼大厅公告。  



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