Abstract:
A Boltzmann equation with scattering cross section that depends on the
reciprocal and first power of the modulus of the relative velocity is
considered. It is solved by application of a Fourier transformation
with respect to the velocity and then separation of the variables. The obtained infinite hierarchy of nonlinear ordinary differential equations is solved by means of the method of Poincaré normal forms, generalized to the infinite-dimensional case. Convergence of the series that
represents the solution is proved.