Algebra and Logic

, Volume 41, Issue 3, pp 152–172 | Cite as

Simple Special Jordan Superalgebras with Associative Nil-Semisimple Even Part

  • V. N. Zhelyabin


We describe unital simple special Jordan superalgebras with associative nil-semisimple even part. In every such superalgebra J=A+M, either M is an associative and commutative A-module, or the associator space (A,A,M) coincides with M. In the former case, if JJ is not a superalgebra of the non-degenerate bilinear superform then its even part A is a differentiably simple algebra and its odd part M is a finitely generated projective A-module of rank 1. Multiplication in M is defined by fixed finite sets of derivations and elements of A. If, in addition, M is one-generated then the initial superalgebra is a twisted superalgebra of vector type. The condition of being one-generated for M is satisfied, for instance, if A is local or isomorphic to a polynomial algebra. We also give a description of superalgebras for which (A,A,M)≠0 and M⋂[A,M]≠0, where [,] is a commutator in the associative enveloping superalgebra of J. It is shown that such each infinite-dimensional superalgebra may be obtained from a simple Jordan superalgebra whose odd part is an associative module over the even.

unital simple special Jordan superalgebra differentiably simple algebra projective A-module 


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Copyright information

© Plenum Publishing Corporation 2002

Authors and Affiliations

  • V. N. Zhelyabin
    • 1
  1. 1.Institute of Mathematics, Siberian BranchRussian Academy of Sciences, Akademika Koptyuga ProspektNovosibirsk

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