(22). An elemental characterization of strong primeness in Lie algebras.


Autores: E. García y M. Gómez Lozano. 

Revista: J. Algebra 312, 2007, 132–141. (JCR:72 de 207. Factor de impacto 0.630)

Abstract: In this paper we prove that a Lie algebra $L$ is strongly prime if and only if $[x,[y,L]]\ne 0$ for every nonzero elements $x,y\in L$. As a consequence, we give an elementary proof, without the classification theorem of strongly prime Jordan algebras, that a linear Jordan algebra or Jordan pair $T$ is strongly prime if and only if $\{x,T,y\}\ne 0$ for every $x,y\in T$. Moreover, we prove that the Jordan algebras at nonzero Jordan elements of strongly prime Lie algebras are strongly prime. 

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and only if it is finite dimensional. Because it is useful for our approach, we provide a characterization of the trace of a finite rank operator on a vector space over a division algebra which is intrinsic in the sense that it avoids imbeddings into finite matrices.