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Gibbs Periodic Measures for a Two-State HC-Model on a Cayley Tree.
- Source :
-
Journal of Mathematical Sciences . Jan2024, Vol. 278 Issue 4, p647-660. 14p. - Publication Year :
- 2024
-
Abstract
- In this paper, we study a two-state Hard-Core (HC) model with activity λ > 0 on a Cayley tree of order k ≥ 2. It is known that there are λcr, λ cr 0 , and λ cr ′ such that • for λ ≤ λcr this model has a unique Gibbs measure μ*, which is translation invariant. The measure μ* is extreme for λ < λ cr 0 and not extreme for λ > λ cr ′ ; • for λ > λcr there exist exactly three 2-periodic Gibbs measures, one of which is μ*, the other two are not translation invariant and are always extreme. The extremity of these periodic measures was proved using the maximality and minimality of the corresponding solutions of some equation, which ensures the consistency of these measures. In this paper, we give a brief overview of the known Gibbs measures for the HC-model and an alternative proof of the extremity of 2-periodic measures for k = 2, 3. Our proof is based on the tree reconstruction method. [ABSTRACT FROM AUTHOR]
- Subjects :
- *TREES
*CAYLEY graphs
*GIBBS sampling
*MEASUREMENT
Subjects
Details
- Language :
- English
- ISSN :
- 10723374
- Volume :
- 278
- Issue :
- 4
- Database :
- Academic Search Index
- Journal :
- Journal of Mathematical Sciences
- Publication Type :
- Academic Journal
- Accession number :
- 175361230
- Full Text :
- https://doi.org/10.1007/s10958-024-06946-z