GRAVITATIONAL FIELD OF LAGRANGIAN NONHOLONOMIC MECHANICAL SYSTEM
VALER NIMINEŢ “Vasile Alecsandri" University of Bacău, Faculty of Sciences, Department of Mathematics, Informatics and Educational Sciences, Calea Mărăşeşti 157, Bacău 600115, Romania, e-mail: valern@ub.ro
One associates to a Lagrangian nonholonomic mechanical system a canonical semispray on the phase space TM, which has the integral curves given by the evolution equations of . The Lagrange geometry of the system is the geometry of semispray . We study h- and v- electromagnetic tensors and then we apply the Ricci identities for the gravitational potentials.