摘要: A random variable which characterizes a macroscopic body in statistical mechanics is proved to be infinitely divisible. It leads parametric representation of partition function an arbitrary body, possibility describe under excitation by gas some elementary quasiparticles etc. phase transition defined as such state that its stable sense Levy. From this definition it follows deduction all general properties transitions: existence renormalization semigroup, classification singularities thermodynamic functions, universality and classes. On basis we has also built 2-parametric scaling theory transitions, for the Ising model