%0 Journal Article %T On the CR structure of the tangent sphere bundle %A Elisabetta Barletta %A Sorin Dragomir %J Le Matematiche %D 1995 %I University of Catania %X We adopt the methods of pseudohermitian geometry (cf. [16]) to study the tangent sphere bundle U(M) over a Riemannian manifold M. If M is an elliptic space form of sectional curvature 1 then U(M) is shown to be globally pseudo-Einstein (in the sense of J. M. Lee, [12]). %K Tangent sphere bundle %K Webster connection %K Pseudohermitian torsion %K Nonlinear connection %K Sasaki matric %U http://www.dmi.unict.it/ojs/index.php/lematematiche/article/view/479