Journal of Statistical Physics, Vol. 114, Nos. 3/4, February 2004. p. 977-1014.
Some years ago, Cercignani, in studying the energy to mass ratio in a homogeneous equilibrium state, concluded that the associated DVMs (Discrete Velocity Models) ratio would be a drawback for DVMs. Here with planar DVMs, dimension d = 2, we try to answer this criticism...