Über die Entstehung von Plasmawellen in stark ionisierten Gasen

This paper concernes the problem of development of plaine waves in a gas plasma without external fields. The question has been recently treated byLandau, v.Kampen, Berz and o. m. The equation ofBoltzmann is discussed and solved for the case with initial conditions (Anfangswertproblem) explicitly. With the usual expression for the collision term exist no ?Eigenlösungen“. Nevertheless in a short time long waves develop withλ>30l _D (Debye-Length) from the initial distribution; the statistical damping cancels down the development of shorter waves. Changing the collision term, one finds true Eigenlösungen too. This different behaviour of the solutions seems to be less a physical problem than a question of the used mathematical formalism.