Abstract
Starting from a relativistic Vlasov description for a system of stars that is not 'too relativistic', this paper examines the effects of discreteness fluctuations and shows that, in the limit that these may be associated with relatively proximate stars, the average distribution function f0 will satisfy the relativistic Landau equation first derived by Israel and Kandrup (1984). This alternative derivation of the Landau equation, which is both simpler and more intuitive, views discreteness effects as being only one particular type of fluctuation which one might envision; and, as such, suggests the possibility of an effective relaxation induced by collective fluctuations, which has already been explored in the Newtonian limit.
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