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相关论文: On Ground States and Phase Transitions of $\lambda…

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We consider the Ising model with competing interactions and a nonzero external field on the Cayley tree of order two. We describe ground states and verify the Peierls condition for the model. Using a contour argument we show the existence…

数学物理 · 物理学 2023-07-26 M. M. Rahmatullaev , M. A. Rasulova , J. N Asqarov

We consider fertile HC-models with three states on a Cayley tree. It is known that four types of such models exist. For these models we describe the translation-invarinat Gibbs measures on a Cayley tree of order three.

数学物理 · 物理学 2015-06-09 Rustam Khakimov

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…

数学物理 · 物理学 2023-04-12 R. M. Khakimov , M. T. Makhammadaliev , U. A. Rozikov

We consider fertile HC-models with four-states and the parametre activity on a Cayley tree. It is known that three types of such models exist. For each of these models we prove uniqueness of the translation-invarinat Gibbs measure on a…

数学物理 · 物理学 2015-06-09 R. M. Khakimov

In the paper we considere three state $p$-adic Potts model with competing interactions on a Cayley tree of order two. We reduce a problem of describing of the $p$-adic Gibbs measures to the solution of certain recursive equation, and using…

数学物理 · 物理学 2009-11-11 Farrukh Mukhamedov , Utkir Rozikov , Jose Fernando F. Mendes

A complete description of two-periodic Gibbs measures on the Cayley tree of orders two and three for HC model with two states is obtained and using the reconstruction method, the extremality of these measures in the area of their existence…

数学物理 · 物理学 2021-11-23 U. Rozikov , R. Khakimov , M. Makhammadaliev

In this paper we consider models with nearest-neighbor interactions and with the set [0,1] of spin values, on a Bethe lattice (Cayley tree) of an arbitrary order. These models depend on parameter $\theta$. We describe all of Gibbs measures…

数学物理 · 物理学 2017-03-28 Yu. Kh. Eshkabilov , G. I. Botirov , F. H. Haydarov

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…

泛函分析 · 数学 2015-06-04 Yu. Kh. Eshkabilov , F. H. Haydarov , U. A. Rozikov

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.

数学物理 · 物理学 2018-03-05 M. M. Rahmatullaev , M. A. Rasulova

In this paper we study homogeneous Gibbs measures on a Cayley tree, subjected to an infinite-temperature Glauber evolution, and consider their (non-)Gibbsian properties. We show that the intermediate Gibbs state (which in zero field is the…

数学物理 · 物理学 2016-11-25 Aernout van Enter , Victor Ermolaev , Giulio Iacobelli , Christof Kuelske

In the present paper we continue the investigation from [1] and consider the SOS (solid-on-solid) model on the Cayley tree of order $k \geq 2$. In the ferromagnetic SOS case on the Cayley tree, we find three solutions to a class of period-4…

数学物理 · 物理学 2020-07-22 G. I. Botirov , F. H. Haydarov

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…

数学物理 · 物理学 2018-01-01 U. A. Rozikov , G. I. Botirov

This work is devoted to description of all translation-invariant $p$-adic Gibbs measures for the $q$-state Potts model on a Cayley tree. In particular for the Cayley tree of order three we give exact number of such measures.

泛函分析 · 数学 2014-03-31 Otabek Khakimov

We consider an Ising model on the Cayley tree $\Gamma_k$ of arbitrary order $k\ge1$ with three spin species of values $(\tfrac12,1,\tfrac32)$ distributed deterministically with period three along the generations. Within the framework of…

概率论 · 数学 2026-02-16 Farrukh Mukhamedov , Muzaffar Rahmatullaev , Obid Karshiboev

We consider a version of the solid-on-solid model on the Cayley tree of order two in which vertices carry spins of value $0,1$ or $2$ and the pairwise interaction of neighboring vertices is given by their spin difference to the power $p>0$.…

数学物理 · 物理学 2024-10-17 Benedikt Jahnel , Utkir 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.

数学物理 · 物理学 2014-03-31 Otabek Khakimov

We consider the SOS (solid-on-solid) model, with spin values $0,1,2$, on the Cayley tree of order two (binary tree). We treat both ferromagnetic and antiferromagnetic coupling, with interactions which are proportional to the absolute value…

数学物理 · 物理学 2014-11-24 C. Kuelske , U. A. Rozikov

Ising model with competing nearest-neighbors and prolonged next-nearest-neighbors interactions on a Cayley tree has long been studied but there are still many problems untouched. This paper tackles new Gibbs measures of Ising-Vannimenus…

动力系统 · 数学 2017-08-10 Hasan Akin

In this paper, we consider the Potts-SOS model where the spin takes values in the set $\{0, 1, 2\}$ on the Cayley tree of order two. We describe all the translation-invariant splitting Gibbs measures for this model in some conditions.…

数学物理 · 物理学 2021-08-11 M. M. Rahmatullaev , M. A. Rasulova

In the present paper, we study a phase transition problem for the $q$-state $p$-adic Potts model over the Cayley tree of order three. We consider a more general notion of $p$-adic Gibbs measure which depends on parameter $\rho\in\bq_p$.…

数学物理 · 物理学 2015-02-10 Farrukh Mukhamedov , Hasan Akin