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Triple Derivations and Triple Homomorphisms of Perfect Lie Superalgebras (1406.1574v2)

Published 6 Jun 2014 in math.RA

Abstract: In this paper, we study triple derivations and triple homomorphisms of perfect Lie superalgebras over a commutative ring $R$. It is proved that, if the base ring contains $\frac{1}{2}$, $L$ is a perfect Lie superalgebra with zero center, then every triple derivation of $L$ is a derivation, and every triple derivation of the derivation algebra $ Der (L)$ is an inner derivation. Let $L,~L{'}$ be Lie superalgebras over a commutative ring $R$, the notion of triple homomorphism from $L$ to $L{'}$ is introduced. We proved that, under certain assumptions, homomorphisms, anti-homomorphisms, and sums of homomorphisms and anti-homomorphisms are all triple homomorphisms.

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