Some extensions from a quadratic Lie algebra
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Abstract
In this paper, we give some extensions from a quadratic Lie algebra to quadratic Lie superalgebras and odd-quadratic Lie superalgebras. Moreover, we use the cohomology to recover some results obtained by the method of double extension.
Keywords
Quadratic Lie algebras, Quadratic Lie superalgebras, Odd-quadratic Lie superalgebras, Extensions, Symplectic structure