吉林大学学报(理学版)

• 数学 •    下一篇

保线性算子q次数值域的线性映射

刘畔畔1, 张树功1, 李庆春2   

  1. 1. 吉林大学 数学研究所, 长春 130012; 2. 北华大学 数学与统计学院, 吉林 吉林 132013
  • 收稿日期:2013-02-01 出版日期:2013-11-26 发布日期:2013-11-21
  • 通讯作者: 张树功 E-mail:sgzh@mail.jlu.edu.cn

Linear Maps Preserving  q Numerical Range of  Linear Operator

LIU Panpan1, ZHANG Shugong1, LI Qingchun2   

  1. 1. Institute of Mathematics, Jilin University, Changchun 130012, China;2. College of Mathematics and Statistics, Beihua University, Jilin 132013, Jilin Province, China
  • Received:2013-02-01 Online:2013-11-26 Published:2013-11-21
  • Contact: ZHANG Shugong E-mail:sgzh@mail.jlu.edu.cn

摘要:

研究保线性算子数值域的线性映射, 在一定条件下分别给出了作用在块对角矩阵、块上三角矩阵及一般分块矩阵上的保q次数值域线性映射的一般形式.

关键词: 广义数值域, q次数值域, 线性保持问题, 块算子矩阵

Abstract:

The linear maps preserving numerical range of linear operators were considered, and under certain conditions, the forms of linear maps  preserving q numerical range on block diagonal matrices, block upper triangular matrices, and general block matrices were given, respectively.

Key words: generalized numerical range, q numerical range, linear preserver problem, block operator matrix

中图分类号: 

  • O177.1