SOME GEOMETRICAL PROPERTIES OF PFAFF SYSTEMS ON MANIFOLDS
VALER NIMINEŢ Department of Mathematics, Informatics and Education Sciences, Faculty of Sciences, "Vasile Alecsandri" University of Bacău, 157 Calea Mărăşeşti, 600115 Bacău, ROMANIA,
e-mail: valern@ub.ro
We continue our investigation [7] of Pfaff systems on manifolds by studying some geo-metrical properties and some consequences of these structures. We point out new geomet-rical invariants of a distributions on manifolds.