Uniqueness of Gibbs Measure for Models With Uncountable Set of Spin Values on a Cayley Tree
arXiv:1202.1722 · doi:10.1007/s11040-012-9118-6
Abstract
We consider models with nearest-neighbor interactions and with the set of spin values, on a Cayley tree of order . It is known that the "splitting Gibbs measures" of the model can be described by solutions of a nonlinear integral equation. For arbitrary we find a sufficient condition under which the integral equation has unique solution, hence under the condition the corresponding model has unique splitting Gibbs measure.
arXiv comment13 pages