Abstract:Let g be a simple finite-dimensional Lie algebra over an algebraically closed field F of characteristic 0. We denote by U(g) the universal enveloping algebra of g. To any nilpotent element e ∈ g one can attach an associative (and noncommutative as a general rule) algebra U(g, e) which is in a proper sense a "tensor factor" of U(g). In this article we consider the case in which g is simple and e belongs of the minimal nonzero nilpotent orbit of g. Under these assumptions U(g, e) was described explicitly in term… Show more
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