IDENTIFICATION OF RIEMANNIAN FOLIATIONS ON THE TANGENT BUNDLE VIA SODE STRUCTURE.

The geometry of a system of second order differential equations is the geometry of a semispray, which is a globally defined vector field on TM. The metric compatibility of a given semispray is of special importance. In this paper, the metric associated with the semispray S is applied in order to study some types of foliations on the tangent bundle which are compatible with SODE structure. Indeed, sufficient conditions for the metric associated with the semispray S are obtained to extend to a bundle-like metric for the lifted foliation on TM. Thus, the lifted foliation converts to a Riemanian foliation on the tangent space which is adapted to the SODE structure. Particularly, the metric compatibility property of the semispray S is applied in order to induce SODE structure on transversals. Finally, some equivalent conditions are presented for the transversals to be totally geodesic. [ABSTRACT FROM AUTHOR]