首页 | 本学科首页   官方微博 | 高级检索  
     

保域上矩阵可交换{1}-逆的线性映射
引用本文:周洪玲,范广慧,苏在滨,卜长江.保域上矩阵可交换{1}-逆的线性映射[J].哈尔滨理工大学学报,2010,15(2):67-70.
作者姓名:周洪玲  范广慧  苏在滨  卜长江
作者单位:1. 黑龙江工程学院,数学系,黑龙江,哈尔滨,150050
2. 哈尔滨工程大学,理学院,黑龙江,哈尔滨,150001
基金项目:黑龙江省教育厅科学技术研究项目 
摘    要:设F是一个特征不为2且至少含有5个元素的域.令Mn(F)为F上的n×n全矩阵代数.刻画了Mn(F)上保持矩阵可交换{1}-逆的线性映射的形式.利用保幂等结论证明了f为Mn(F)上的保持矩阵可交换{1}-逆的非零线性映射,当且仅当存在P∈GLn(F),使得f(A)=εPAP-1,A∈Mn(F),ε=±1∈F;或者存在P∈GLn(F),使得f(A)=εPAtP-1,A∈Mn(F),ε=±1∈F.

关 键 词:  线性映射  可交换{1}-逆

Linear Maps Preserving Commutative {1}-Inverses of Matrices over Fields
ZHOU Hong-ling,FAN Guang-hui,SU Zai-bin,BU Chang-jiang.Linear Maps Preserving Commutative {1}-Inverses of Matrices over Fields[J].Journal of Harbin University of Science and Technology,2010,15(2):67-70.
Authors:ZHOU Hong-ling  FAN Guang-hui  SU Zai-bin  BU Chang-jiang
Affiliation:1.Department of Mathematics,Heilongjiang Engineering College,Harbin 150050,China;2.College of Science,Harbin Engineering University,Harbin 150001,China)
Abstract:Suppose F is a field of characteristic not 2 with at least five elements.Let Mn(F) be the n × n full matrix algebra over F.The forms of linear maps preserving commutative {1}-inverses of matrices over Mn(F) are characterized.Using the conclusions of idempotent-preserving,it is proved that f is the nonzero linear maps from Mn(F) to Mn(F) preserving commutative {1}-inverses of matrices,if and only if there exists P∈GLn(F),such that f(A) = εPAP-1,A∈Mn(F),ε = ± 1∈F,or there exists P∈GLn(F),such that f(A) = εPAtP-1,A∈ Mn(F),ε = ±1∈F.
Keywords:field  linear map  commutative {1}-inverse
本文献已被 CNKI 维普 万方数据 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号