δδ-derivations of classical Lie superalgebras

preprint2010arXivOpen access

Abstract

We consider the δδ-derivations of classical Lie superalgebras and prove that these superalgebras admit nonzero δδ-derivations only when δ=0,1/2,1δ= 0,1/2,1. The structure of 1/21/2-derivations for classical Lie superalgebras is completely determined.

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