学术报告

A projection method based on discrete normalized dynamical system for computing the C-eigenpairs of a piezoelectric tensor

崔鲁宾（河南师范大学）

报告时间：2023年12月15日星期五下午 16：50-17：40

报告地点：老主楼研讨室三层主318

报告摘要: The largest C-eigenvalue of piezoelectric tensors determines the highest piezoelectric coupling constant, which reflects the coupling between the elastic and dielectric properties of crystal. Here a projection method based on discrete normalized dynamical system (PDND) is established for computing the largest C-eigenvalue. Theoretical analysis of the convergence for PDND algorithm is given. In numerical experiment, the longitudinal piezoelectric modulus and the unit uniaxial direction that the extreme piezoelectric effect along took place of different piezoelectric materials are given to display the physical meaning of the C-eigenvalues and eigenvectors. Furthermore, the largest C-eigenvalue and all the corresponding eigenvectors can be obtained, which is advantage of the proposed method.

报告人简介：崔鲁宾，河南师范大学数学与信息科学学院副教授，信息与计算科学系主任，香港大学、香港浸会大学访问学者，主持完成国家自然科学基金项目2项，河南省教育厅重点项目2项，新乡航空工业集团横向项目2项，曾在 SIMAX，NLAA，JOTA，FMC 等SCI期刊发表论文20余篇，其中ESI高被引论文3篇。曾获河南省优秀硕士论文指导教师、河南省自然科学学术论文一等奖1项、指导学生参加”华为杯”中国研究生数学建模竞赛获得国家一等奖3项等。

邀请人：崔春风