5 citations · 6 across the 9 of their papers we have counts for
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The structure of CR manifolds
Aristide Tsemo
In this paper we study the topology of pseudo convex CR manifolds whose Reeb flow preserves the Levi metric.
Affine manifolds, lagrangian manifolds
Aristide Tsemo
Let be a symplectic manifold endowed with a agrangian foliation , it has been shown by Weinstein [16] hat the symplectic structure of defines on each leaf of…
Kahler, Poisson Geometry of CR Lie groups
A. Tsemo
In this paper we study left invariant CR structures on Lie groups which are compatible with geometric properties as Poisson and kahler properties.
An Atiyah-Singer theorem for gerbes
Aristide Tsemo
Let M be a riemannian manifold. The existence of a spin structure on M, enables to study the topology of M. The obstruction to the existence of the spin structure is given by the s…
The diffential geometry of composition sequences of differentiable manifolds
A. Tsemo
Let F_0=B,...,F_n be a sequence of differentiable manifolds, G_i a Lie subgroup of diffeomorphisms of F_i, and H_i a subgroup of G_i central in G_i. We suppose also given a locally…
Closed similarity lorentzian affine manifolds
A. Tsemo
A Sim(n-1,1) affine manifold is an affine manifold whose linear holonomy is contained in the similarity lorentzian group but not in the lorentzian group. The class of similarity lo…