{ "id": "math/0409046", "version": "v1", "published": "2004-09-03T09:41:16.000Z", "updated": "2004-09-03T09:41:16.000Z", "title": "An Analysis of Ising Type Models On Cayley Tree by a Contour Argument", "authors": [ "U. A. Rozikov" ], "comment": "17 pages", "categories": [ "math.PR", "math-ph", "math.MP" ], "abstract": "In the paper the Ising model with competing $J_1$ and $J_2$ interactions with spin values $\\pm 1$, on a Cayley tree of order 2 (with 3 neighbors) is considered . We study the structure of the ground states and verify the Peierls condition for the model. Our second result gives description of Gibbs measures for ferromagnetic Ising model with $J_1<0$ and $J_2=0$, using a contour argument which we also develop in the paper. By the argument we also study Gibbs measures for a natural generalization of the Ising model. We discuss some open problems and state several conjectures.\\", "revisions": [ { "version": "v1", "updated": "2004-09-03T09:41:16.000Z" } ], "analyses": { "subjects": [ "60K35", "82B05", "82B20" ], "keywords": [ "ising type models", "cayley tree", "contour argument", "study gibbs measures", "natural generalization" ], "note": { "typesetting": "TeX", "pages": 17, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2004math......9046R" } } }