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math.DG2019
On some classes of Z-graded Lie algebras
Stefano Marini, Costantino Medori, Mauro Nacinovich
We study finite dimensional almost and quasi-effective prolongations of nilpotent Z-graded Lie algebras, especially focusing on those having a decomposable reductive structural sub…
math.CV2019
Aspects of the Levi form
Judith Brinkschulte, C. Denson Hill, Jürgen Leiterer +1
We discuss various analytical and geometrical aspects of the Levi form, which is associated with a CR manifold having any CR dimension and any CR codimension.