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Название: Strict Monotonicity for Critical Points in Percolation and Ferromagnetic Models
Авторы: Aizenman M., Grimmett G.
Journal of Statistical Physics, Vol. 63, Nos. 5/6, 1991. p. 817-835.
When is the numerical value of the critical point changed by an enhancement of the process or of the interaction? Ferromagnetic spin models, independent percolation, and the contact process are known to be endowed with monotonicity properties in that certain enhancements are capable of shifting the corresponding phase transition in only an obvious direction, e.g., the addition of ferromagnetic couplings can only increase the transition temperature. The question explored here is whether enhancements do indeed change the value of the critical point...