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In the present paper we provide a new construction of measure, called $p$-adic quasi Gibbs measure, for countable state of $p$-adic Potts model on the Cayley tree. Such a construction depends on a parameter $\frak{p}$ and wights. In…

Mathematical Physics · Physics 2012-08-17 Farrukh Mukhamedov

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 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…

Probability · Mathematics 2026-02-16 Farrukh Mukhamedov , Muzaffar Rahmatullaev , Obid Karshiboev

We show that the nearest neighbors Ising model on the Cayley tree exhibits new temperature driven phase transitions. These transitions holds at various inverse temperatures different from the critical one. They are depicted by a change in…

Mathematical Physics · Physics 2015-06-16 D. Gandolfo , F. H. Haydarov , U. A. Rozikov , J. Ruiz

In this paper we study the boundedness of the $p$-adic quasi Gibbs measures for the Vannimenus model on a Cayley tree of order two.

Mathematical Physics · Physics 2015-06-18 Otabek Khakimov

For the Potts model on Cayley trees, a very wide class of new Gibbs measures is given. We give a review of all known Gibbs measures of the Potts model on trees and compare them with our new measures.

Mathematical Physics · Physics 2022-11-23 Muzaffar M. Rahmatullaev , Dekhkonov D. Jasur

For the $q$-state Potts model on a Cayley tree of order $k\geq 2$ it is well-known that at sufficiently low temperatures there are at least $q+1$ translation-invariant Gibbs measures which are also tree-indexed Markov chains. Such measures…

Mathematical Physics · Physics 2015-06-17 C. Külske , U. A. Rozikov , R. M. Khakimov

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…

Mathematical Physics · Physics 2020-07-22 G. I. Botirov , F. H. Haydarov

In this paper we complete the analysis of a statistical mechanics model on Cayley trees of any degree, started in [EsHaRo12,EsRo10,BoEsRo13,JaKuBo14,Bo17]. The potential is of nearest-neighbor type and the local state space is compact but…

Probability · Mathematics 2018-03-09 Golibjon Botirov , Benedikt Jahnel

We consider translation-invariant splitting Gibbs measures (TISGMs) for the $q$-state Potts model on a Cayley tree of order two. Recently a full description of the TISGMs was obtained, and it was shown in particular that at sufficiently low…

Mathematical Physics · Physics 2017-03-23 D. Gandolfo , M. M. Rahmatullaev , U. A. Rozikov

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…

Probability · Mathematics 2007-05-23 U. A. Rozikov

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 $p>0$.…

Mathematical Physics · Physics 2024-10-17 Benedikt Jahnel , Utkir Rozikov

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…

Mathematical Physics · Physics 2021-11-23 U. Rozikov , R. Khakimov , M. Makhammadaliev

We consider Gradient Gibbs measures corresponding to a periodic boundary law for a generalized SOS model with spin values from a countable set, on Cayley trees. On the Cayley tree, detailed information on Gradient Gibbs measures for models…

Probability · Mathematics 2023-09-06 F. H. Haydarov , R. A. Ilyasova

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…

Mathematical Physics · Physics 2023-07-26 M. M. Rahmatullaev , M. A. Rasulova , J. N Asqarov

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…

Mathematical Physics · Physics 2016-11-25 Aernout van Enter , Victor Ermolaev , Giulio Iacobelli , Christof Kuelske

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…

Mathematical Physics · Physics 2015-06-09 R. M. Khakimov

In this paper we consider translation-invariant Gibbs measures for the Blum-Kapel model on a Cayley tree of order k. An approximate critical temperature T_{cr} is found such that for T\geq T_{cr} there exists a unique translation-invariant…

Statistical Mechanics · Physics 2018-04-17 N. Xatamov , R. Khakimov

An exact analytical derivation is presented, showing that the Ising model on the Cayley tree exhibits a line of third order phase transition points, between temperatures $T_2=2k_B^{-1}J\ln ({\sqrt 2}+1) $ and $T_{BP}=k_B^{-1}J\ln (3)$, and…

Statistical Mechanics · Physics 2007-05-23 Borko D. Stosic , Tatijana Stosic , Ivon P. Fittipaldi

In this paper we give a systematic review of the theory of Gibbs measures of Potts model on Cayley trees (developed since 2013) and discuss many applications of the Potts model to real world situations: mainly biology, physics, and some…

Probability · Mathematics 2021-12-08 U. A. Rozikov