On the cohomology of generalized restricted Lie algebras (Q1273103)

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scientific article; zbMATH DE number 1229541
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On the cohomology of generalized restricted Lie algebras
scientific article; zbMATH DE number 1229541

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    On the cohomology of generalized restricted Lie algebras (English)
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    5 June 1999
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    In [J. Algebra 194, 157-177 (1997; Zbl 0885.17014)] the author gave the definition of a generalized restricted Lie algebra (GR Lie algebra) over a field of characteristic \(p>0\). This notion is not invariant and depends on the basis \(E\) of the Lie algebra \(L\). For a GR Lie algebra \((L,E)\) the generalized restricted enveloping algebra \(\mathfrak U_{p^s}(L,E)\) analogous to the restricted enveloping algebra \(\mathfrak u(L)\) is built. The author spreads out a series of known results on the cohomology of \(\mathfrak u(L)\) over the cohomology of \(\mathfrak U_{p^s}(L,E)\). For a graded Lie algebra of Cartan type \(L\) and the induced \(\mathfrak U_{p^s}(L,E)\)-module \(Z_{p^s}(\lambda)\) with highest weight \(\lambda \) the usual cohomology group \(H^1(L,~Z_{p^s}(\lambda))\) is calculated.
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    modular Lie algebra
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    generalized restricted Lie algebra
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    cohomology
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    Lie algebra of Cartan type
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