吉林大学学报(理学版)2017,Vol.55Issue(1):79-81,3.DOI:10.13413/j.cnki.jdxblxb.2017.01.14
可逆上三角矩阵上的加性映射
Additive Maps on Invertible Upper Triangular Matrices
摘要
Abstract
Let Tn (K)be the ring of all n×n upper triangular matrices over a field K.We prove that a map f :Tn (K)→Tn (K)is additive if and only if f (A +B )=f (A )+f (B )for any two invertible matrices A,B ∈Tn (K)when 丨K丨 > 2,and give a counter example which shows that the conclusion will not be true when 丨K丨 =2.关键词
加性映射/n×n上三角矩阵环/可逆上三角矩阵Key words
additive map/ring of n×n upper triangular matrix/invertible upper triangular matrix分类
数理科学引用本文复制引用
刘汉超,徐晓伟..可逆上三角矩阵上的加性映射[J].吉林大学学报(理学版),2017,55(1):79-81,3.基金项目
国家自然科学基金(批准号:11371165). (批准号:11371165)