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Showing 2006 · math.DGShow all
4 papers · 2 filters
math.DG2006
On the curvature groups of a CR manifold
Elisabetta Barletta, Sorin Dragomir
We show that any contact form whose Fefferman metric admits a nonzero parallel vector field is pseudo-Einstein of constant pseudohermitian scalar curvature. As an application we co…
math.DG2006★ 2 cited
On the pseudohermitian sectional curvature of a strictly pseudoconvex CR manifold
Elisabetta Barletta
We study the pseudohermitian sectional curvature of a CR manifold.
math.DG2006
Jacobi fields of the Tanaka-Webster connection on Sasakian manifolds
Elisabetta Barletta, Sorin Dragomir
We build a variational theory of geodesics of the Tanaka-Webster connection on a strictly pseudoconvex CR manifold.
math.DG2006
Minimality in CR geometry and the CR Yamabe problem on CR manifolds with boundary
Sorin Dragomir
We study the minimality of an isometric immersion of a Riemannian manifold into a strictly pseudoconvex CR manifold endowed with the Webster metric hence formulate a version of the…