4.1.1 The Zeroth Order Equation

Neglecting terms of the first and the second order in (4.4) the zeroth order equation is derived:

$$\frac{q}{\hbar}\vec{E}_{s}\nabla f_{s}(\vec{k})=[1-f_{s}(\vec{k})... ... f_{s}(\vec{k})\int [1-f_{s}(\vec{k}^{'})]S(\vec{k},\vec{k}^{'})\,d\vec{k}^{'}.$$ (4.9)

(4.10) represents the nonlinear stationary Boltzmann equation for the stationary distribution function $f_{s}(\vec{k})$.

S. Smirnov: