吉林大学学报(理学版)

• 数学 • 上一篇    下一篇

实对称张量正定性的判定

王峰, 孙德淑   

  1. 贵州民族大学 理学院, 贵阳 550025
  • 收稿日期:2016-03-11 出版日期:2017-01-26 发布日期:2017-02-02
  • 通讯作者: 王峰 E-mail:wangfeng@gzmu.edu.cn

Criterion for Positive Definiteness of Real Symmetric Tensors

WANG Feng, SUN Deshu   

  1. College of Science, Guizhou Minzu University, Guiyang 550025, China
  • Received:2016-03-11 Online:2017-01-26 Published:2017-02-02
  • Contact: WANG Feng E-mail:wangfeng@gzmu.edu.cn

摘要: 通过构造不同的正对角阵并结合不等式的缩放技巧, 给出了H-张量一种新的判定方法, 并给出偶数阶实对称张量, 即偶次齐次多项式正定性的新实用判别条件.

关键词: 正定性, 齐次多项式, 实对称张量, H-张量

Abstract: We gave a new criterion for Htensors by constructing different positive diagonal matrices combined with scaling techniques of inequalities, and gave new practical criteria conditions for the positive definiteness of an evenorder real symmetric tensor, i.e., an evendegree homogeneous polynomials.

Key words: real symmetric tensor, positive definiteness, H-tensor, homogeneous polynomial

中图分类号: 

  • O151.21