1. Statistical Mechanics of Relativistic Streams. II
2. G. Ascoli, University of Illinois, Coordinated Science Laboratory Report R-131 (1961).
3. See Eqs. (4.10) and (4.11) on p. 754 of Ref. 1. Equation (1) can be obtained from these equations after some algebraic manipulations for the case of longitudinal waves (kx = 0).
4. B. D. Fried and S. D. Conte,The Plasma Dispersion Function(Academic Press Inc., New York, 1961).
5. This condition is obtained by examination of the published results of Fried and Conte (Ref. 4). To facilitate use of this reference, note that 1+xX−yY = −12Re(Zʹ).