  Equations of geodesic deviation for the 3-dimensional and 4-dimensional
Riemann spaces are discussed. Availability of wide classes of exact solutions
of such equations, due to recent results for the matrix Schr\"odinger equation,
is demonstrated. Particular classes of exact solutions for the geodesic
deviation equation as well as for the Raychaudhuri and generalized Raychaudhuri
equation are presented. Solutions of geodesic deviation equation for the
Schwarzshild and Kasner metrics are found.
