Abstract:
It is shown that the relation between kernels $L_l(v,v_1)$ of the linear collision integral and kernels $G^l_{l,0}(v,v_1,v_2)$ of the nonlinear collision integral can be reduced to the Laplace transformation. Analytic expressions for nonlinear kernels $G^{+0}_{0,0}(v,v_1,v_2)$ and $G^{+1}_{1,0}(v,v_1,v_2)$ are determined for hard spheres and pseudo-Maxwellian molecules.