摘要
设F为元素个数大于3的域,M2(F)为F上的2×2矩阵代数,T2(F)≡{T|T3=T,T∈M2(F)}.所有满足:M2(F)→M2(F),A+λB∈T2(F)(A)+λ(B)∈T2(F),A,B∈T2(F),λ∈F的单映射构成的集合用Φ表示.利用保立方幂等映射和原象之间的关系刻画了集合Φ中元素的形式.
Suppose F be an arbitrary field with at least 3 elements, M2(F) be 2 ×2 matrix algebras over F. T2(F)≡{T|T^3=T,T∈M2(F)}.The sets Ф based on the maps Ф: Ф:M2(F)→M2(F) satisfies: A+λB∈T2(F)=〉Ф(A)+λФ(B)∈T2(F), A,B∈T2(F),λ∈F. The maps of set Ф are studied in this paper by using the relation between image and inverse image.
出处
《纺织高校基础科学学报》
CAS
2009年第3期288-291,共4页
Basic Sciences Journal of Textile Universities
基金
西安工程大学校管科研项目(08XG29)
关键词
立方幂等
映射
域
矩阵代数
tripotence, map
field
matrix algebra