2020/01/02 by Chen, Zhenhui, Hou, Jinchuan
#15A78 #16W25 #47B47 #FOS: Mathematics #Operator Algebras (math.OA) #Rings and Algebras (math.RA)
paper · doi:10.48550/arxiv.2001.00427
A map ϕ on an associative ring is called a multiplicative Lie derivation if ϕ([x,y])=[ϕ(x),y]+[x,ϕ(y)] holds for any elements x,y, where [x,y]=xy-yx is the Lie product. In the paper, we discuss the multiplicative Lie derivations on the triangular 3-matrix rings \mathcal T=\mathcal T3(\mathcal Ri; \mathcal Mij). Under the standard assumption Qi\mathcal Z(\mathcal T)Qi=\mathcal Z(Qi\mathcal T Qi), i=1,2,3, we show that every multiplicative Lie derivation φ:\mathcal T→\mathcal T has the standard form φ=δ+γ with δ a derivation and γ a center valued map vanishing each commutator.