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Related papers: Three-state $p$-SOS models on binary Cayley trees

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We consider a coupled Ising-Potts model on Cayley trees of order $ k \geq 2 $. This model involves spin vectors $ (s, \sigma) $, and generalizes both the Ising and Potts models by incorporating interactions between two types of spins: $s =…

Functional Analysis · Mathematics 2025-02-18 F. H. Haydarov , B. A. Omirov , U. A. Rozikov

We consider $\mathbb Z$-valued $p$-SOS-models with nearest neighbor interactions of the form $|\omega_v-\omega_w|^p$, and finite-spin ferromagnetic models on regular trees. This includes the classical SOS-model, the discrete Gaussian model…

Probability · Mathematics 2023-03-29 Loren Coquille , Christof Kuelske , Arnaud Le Ny

In this paper we construct several models with nearest-neighbor interactions and with the set $[0,1]$ of spin values, on a Cayley tree of order $k\geq 2$. We prove that each of the constructed model has at least two translational-invariant…

Functional Analysis · Mathematics 2015-06-04 Yu. Kh. Eshkabilov , F. H. Haydarov , U. A. Rozikov

The paper concerns the $q$-state Potts model (i.e., with spin values in $\{1,\dots,q\}$) on a Cayley tree $\mathbb{T}^k$ of degree $k\geq 2$ (i.e., with $k+1$ edges emanating from each vertex) in an external (possibly random) field. We…

Mathematical Physics · Physics 2019-07-30 Leonid V. Bogachev , Utkir A. Rozikov

We study $p$-adic model of hard spheres with three states on the Cayley tree. We show that there exist three translation-invariant $p$-adic Gibbs measures and two periodic measures on a Cayley tree of oreder two.

Mathematical Physics · Physics 2014-03-31 Otabek Khakimov

In this paper, we consider a Hard-Core $(HC)$ model with two spin values on Cayley trees. The conception of alternative Gibbs measure is introduced and translational invariance conditions for alternative Gibbs measures are found. Also, we…

Probability · Mathematics 2023-06-07 R. M. Khakimov , M T. Makhammadaliev , F. H. Haydarov

We consider a nearest-neighbor $p$-adic $\l$-model with spin values $\pm 1$ on a Cayley tree of order $k\geq 1$. We prove for the model there is no phase transition and as well as the unique $p$-adic Gibbs measure is bounded if and only if…

Mathematical Physics · Physics 2015-06-26 Murod Khamraev , Farrukh Mukhamedov , Utkir Rozikov

For the SOS (solid-on-solid) model with an external field and with spin values from the set of all integers on a Cayley tree each (gradient) Gibbs measure corresponds to a boundary law (an infinite-dimensional vector function defined on…

Dynamical Systems · Mathematics 2022-09-30 U. A. Rozikov

In the paper, we consider the $\lambda$-model with spin values $\{1, 2, 3\}$ on the Cayley tree of order two. We first describe ground states of the model. Moreover, we also proved the existence of translation-invariant Gibb measures for…

Mathematical Physics · Physics 2017-08-15 Farrukh Mukhamedov , Chin Hee Pah , Hakim Jamil

In this paper for the Potts-SOS model on a Cayley tree under some conditions the existence of at least one periodic (non translation-invariant) Gibbs measure is proved.

Mathematical Physics · Physics 2018-03-05 M. M. Rahmatullaev , M. A. Rasulova

We consider models with nearest-neighbor interactions and with the set $[0,1]$ of spin values, on a Cayley tree of order $k\geq 1$. It is known that the "splitting Gibbs measures" of the model can be described by solutions of a nonlinear…

Mathematical Physics · Physics 2018-01-01 U. A. Rozikov , G. I. Botirov

In this paper we show that under some conditions on the parameter of the Potts model with three states with zero external field on the Cayley tree of order $k>2$, there are exactly two periodic (non translation-invariant) Gibbs measures.

Mathematical Physics · Physics 2015-12-18 F. H. Haydarov , R. M. Khakimov

We consider a nearest-neighbor solid-on-solid (SOS) model, with several spin values $0,1,2,...,m, m\geq2$ and non zero external field, on a Cayley tree of order $k$. In the case $k=2, m=2$, we describe translation-invariant ground states…

Mathematical Physics · Physics 2019-08-08 M. M. Rahmatullaev , M. R. Abdusalomova , M. A. Rasulova

In this paper, we study the HC-model with a countable set $\mathbb Z$ of spin values on a Cayley tree of order $k\geq 2$. This model is defined by a countable set of parameters (that is, the activity function $\lambda_i>0$, $i\in \mathbb…

Mathematical Physics · Physics 2023-04-12 R. M. Khakimov , M. T. Makhammadaliev , U. A. Rozikov

In the present paper, we study the $(2,q)$-Ising-Potts model on the Cayley tree. We have derived a recurrence equation that shows the existence of a splitting Gibbs measure for this model. Furthermore, we have proven that for the…

Probability · Mathematics 2025-11-04 Muzaffar Rahmatullaev , Akbarkhuja Tukhtabaev

In this paper we consider a model with nearest-neighbor interactions and with the set $[0,1]$ of spin values, on a Cayley tree of order $k \geq 2$. To study translation-invariant Gibbs measures of the model we drive an nonlinear functional…

Mathematical Physics · Physics 2012-10-30 Yu. Kh. Eshkabilov , U. A. Rozikov , G. I. Botirov

We consider a nearest-neighbor inhomogeneous $p$-adic Potts (with $q\geq 2$ spin values) model on the Cayley tree of order $k\geq 1$. The inhomogeneity means that the interaction $J_{xy}$ couplings depend on nearest-neighbors points $x, y $…

Mathematical Physics · Physics 2014-11-18 Farrukh Mukhamedov , Utkir Rozikov

We consider models with nearest-neighbor interactions and with the set $[0,1]$ of spin values, on a Cayley tree of order $k\geq 1$. It is known that the "splitting Gibbs measures" of the model can be described by solutions of a nonlinear…

Functional Analysis · Mathematics 2015-06-04 Yu. Kh. Eshkabilov , F. H. Haydarov , U. A. Rozikov

In this paper, we study the Hard Core (HC) model with a countable set $\mathbb Z$ of spin values on a Cayley tree of order $k=2$. This model is defined by a countable set of parameters (that is, the activity function $\lambda_i>0$, $i\in…

Mathematical Physics · Physics 2023-10-20 R. M. Khakimov , M. T. Makhammadaliev

In this paper we investigate generalized Gibbs measure (GGM) for $p$-adic Hard-Core(HC) model with a countable set of spin values on a Cayley tree of order $k\geq 2$. This model is defined by $p$-adic parameters $\lambda_i$, $i\in \mathbb…

Functional Analysis · Mathematics 2022-07-12 U. A. Rozikov , I. A. Sattarov , A. M. Tukhtabaev