Geodesic
$\delta$-Derivations of simple finite-dimensional Jordan superalgebras
Algebra i logika, Tome 46 (2007) no. 5, pp. 585-605.

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We describe non-trivial $\delta$-derivations of semisimple finite-dimensional Jordan algebras over an algebraically closed field of characteristic not 2, and of simple finite-dimensional Jordan superalgebras over an a gebraically closed field of characteristic 0. For these classes of algebras and superalgebras, non-zero $\delta$-derivations are shown to be missing for $\delta\ne0,1/2,1$, and we give a complete account of 1/2-derivations.
Keywords: $\delta$-derivation, simple finite-dimensional Jordan superalgebra. 
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I. B. Kaygorodov. $\delta$-Derivations of simple finite-dimensional Jordan superalgebras. Algebra i logika, Tome 46 (2007) no. 5, pp. 585-605. http://geodesic.mathdoc.fr/item/AL_2007_46_5_a3/

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