PRECISE SOLUTION TO A MODEL OF THE KINETIC-EQUATION

Precise solutions of the stationary Fokker-Plank-type equation are obt ained in quadratures for two- and three-dimensional electron gases. Th ese solutions relate only to the case when electron-electron interacti on is omitted. To illustrate our method we consider the example of the interaction of electrons with optical phonons at high temperatures wh ere the approximation of small-angle scattering is appropriate. Compar ison of mobilities calculated by our method and the obvious tau approx imation gives the divergence only in numerical multiplier.