Solving Gromeka–Lamba equations by means of perturbation theory

On basis of perturbation theory solving of Gromeka–Lamba equations for charged particles suggested. The new type of ambipolar diffusion caused by sluggishness of ions and electrons had been investigated, and processes of ambipolar diffusion in simple plasma (consist of electrons and one sort of ions) had been classified. Three main types of ambipolar diffusion had been compared, they are: 1) Schottky's diffusion (caused by higher electron's mobility and temperature than ion's mobility and temperature), 2) Poisson's diffusion (caused by disturbance of neutrality of plasma), 3) Euler's diffusion (caused by sluggishness of ions and electrons). Coefficients of all diffusions had been calculated, and dependences on main plasma parameters had been determined. According to classification of ambipolar diffusions discontinuities of the main plasma parameters had been divided on discontinuities with disturbance of neutrality of plasma (Poisson) and diffusion discontinuities, which in they turn had been divided on Euler's discontinuities and Schottky's classical discontinuities.