THE CONSISTENCY AND ADEQUACY OF THE POISSON-MARKOFF MODEL FOR DENSITY FLUCTUATIONS
密度波动的 Poisson–Markoff 模型的一致性与适切性
The Poisson-Markoff or emigration-immigration process (as defined in §1.2) has been used as an approximate model for the number of independently moving particles present in particular regions of space, for example, as an approximate model in spermatozoa studies. The postulation of such a model, valid for all modes of division of the space, is shown to be inconsistent in the sense of leading to contradictions, except when τ, the total interval of time considered, is small;…