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External sources (not reviewed)

The main topics on which Koszul undertook research included: homology and cohomology of Lie algebras; relative cohomology; reductive subalgebras and the transgression theorem; the formalism of spectral sequences; "Koszul complexes"; proper and differentiable actions of Lie groups; slices; hermitian forms on complex homogeneous domains; bounded domains; locally flat manifolds; convex homogeneous domains; simplicial spaces; themes related to Gelfand -Fuks theory and supergeometry.