Positive association in the fractional fuzzy Potts model
Kahn, Jeff ; Weininger, Nicholas
Ann. Probab., Tome 35 (2007) no. 1, p. 2038-2043 / Harvested from Project Euclid
A fractional fuzzy Potts measure is a probability distribution on spin configurations of a finite graph G obtained in two steps: first a subgraph of G is chosen according to a random cluster measure φp,q, and then a spin (±1) is chosen independently for each component of the subgraph and assigned to all vertices of that component. We show that whenever q≥1, such a measure is positively associated, meaning that any two increasing events are positively correlated. This generalizes earlier results of Häggström [Ann. Appl. Probab. 9 (1999) 1149–1159] and Häggström and Schramm [Stochastic Process. Appl. 96 (2001) 213–242].
Publié le : 2007-11-14
Classification:  Positive association,  random cluster model,  fuzzy Potts model,  60C05,  05D40
@article{1191860414,
     author = {Kahn, Jeff and Weininger, Nicholas},
     title = {Positive association in the fractional fuzzy Potts model},
     journal = {Ann. Probab.},
     volume = {35},
     number = {1},
     year = {2007},
     pages = { 2038-2043},
     language = {en},
     url = {http://dml.mathdoc.fr/item/1191860414}
}
Kahn, Jeff; Weininger, Nicholas. Positive association in the fractional fuzzy Potts model. Ann. Probab., Tome 35 (2007) no. 1, pp.  2038-2043. http://gdmltest.u-ga.fr/item/1191860414/