兰州理工大学学报 ›› 2021, Vol. 47 ›› Issue (5): 155-161.

• 数理科学 • 上一篇    下一篇

基于H-张量的齐次多项式正定性的判定

孙德淑*, 柏冬健, 王峰   

  1. 贵州民族大学 数据科学与信息工程学院, 贵州 贵阳 550025
  • 收稿日期:2020-06-15 出版日期:2021-10-28 发布日期:2021-11-18
  • 通讯作者: 孙德淑(1980-),女,山东临沂人,硕士,讲师.Email:sundeshu0818@163.com
  • 基金资助:
    国家自然科学基金(11861077),贵州省科学技术基金(20181079,20191161),贵州省教育厅自然科学基金(2015420)

New criteria based H-tensors for identifying the positive definiteness of multivariate homogeneous forms

SUN De-shu, BAI Dong-jian, WANG Feng   

  1. College of Data Science and Information Engineering, Guizhou Minzu University, Guiyang 550025
  • Received:2020-06-15 Online:2021-10-28 Published:2021-11-18

摘要: 通过构造不同的正对角阵,结合不等式的放缩技巧,给出了H-张量比较实用的新判别条件.作为应用,给出了判定偶次齐次多项式正定性的新方法,用数值算例说明新方法的可行性.

关键词: 齐次多项式, H-张量, 正定性, 对角占优性

Abstract: Some practical conditions for H-tensors are provided by constructing different positive diagonal matrices and applying some techniques of inequalities. As applications, new methods for the positive definiteness of even-order homogeneous multivariate polynomial are presented. Numerical examples are given to illustrate the feasibility of the new method.

Key words: homogeneous polynomial, H-tensors, positive definiteness, diagonally dominant

中图分类号: