Maps on upper triangular matrices preserving Lie products
Maps on upper triangular matrices preserving Lie products
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DOI:
10.1080/03081080600635484
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发表时间:
2007-03
影响因子:
1.1
通讯作者:
G. Dolinar
中科院分区:
文献类型:
--
作者:
G. Dolinar
Let be an arbitrary field with characteristic zero, let Tn be the Lie algebra of all n × n upper triangular matrices over with the Lie product [A,B] = A B − B A, and let a bijective map φ : Tn → Tn satisfy φ ([A,B]) = [φ (A) , φ (B)], A,B ∈ Tn . Then there exist an invertible matrix T ∈ Tn , a function satisfying ϕ (C) =0 for every strictly upper triangular matrix C ∈ Tn , and an automorphism f of the field , such that for all [aij ]∈ Tn , or for all [aij ] ∈ Tn , where .