Distribution function
From PlasmaWiki
A distribution function describes the distribution of particles in 6-dimensional space (x, y, z, px, py, pz) versus time. The evolution of the distribution function is determined by the Vlasov equation.
Moment n of the distribution function is given by:
Where n is an integer between 0 and infinity. For a solution one needs to find a closure relation to bound one's calculations. One doesn't wish to encounter the problem of infinite regress!
