Abstract
A mechanical system Q generated by a Lagrangian L(t, x, x' ) is considered, whose the evolution equations is described by the Euler-Lagrange equations (2.1.). The geometry of the dynamical system determined by Q is the geometry of a semispray whose integral curves are the evolution equations of Q. The theory is extended to Lagrangians of higher order.
Cuvinte cheie
dynamical system
semispray
Euler-Lagrange equations