On the compatibility of supermetrics with nonlinear connections
One of the Helmholtz conditions for the inverse problem of a Lagrangian Mechanics is the metric compatibility of a semispray and the associated nonlinear connection with a generalized Lagrange metric. In this paper, with respect to the supermetric induced by the Hessian of the Lagrangian, we find a family of nonlinear connections compatible with supermetric. In a particular case, when a Lagrangian superfunction is regular, we have a solution for the Euler-Lagrange superequation which defines a metric nonlinear connection.