Gibbs measure for the HC-Blume-Capel model in the case of a "wand" type graph on a Cayley tree

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Main Authors: Khatamov, Nosirjon M., Kodirova, Malika A.
Format: Preprint
Published: 2026
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author Khatamov, Nosirjon M.
Kodirova, Malika A.
author_facet Khatamov, Nosirjon M.
Kodirova, Malika A.
contents In this paper, we investigate translation-invariant splitting Gibbs measures (TISGMs) for the HC-Blume-Capel model on a "wand" graph embedded in the Cayley tree of arbitrary order $k \geq 2$. It is known that there is the exact critical value $θ_{cr}$ such that for $θ\geq θ_{cr}$, there exists a unique TISGM, whereas for $θ< θ_{cr}$, precisely three TISGMs exist in the case of a "wand" graph for the given model. In the present paper, we completely solve the (non-)extremality problem for one of these measures for any order $k$ of Cayley tree
format Preprint
id arxiv_https___arxiv_org_abs_2603_28830
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Gibbs measure for the HC-Blume-Capel model in the case of a "wand" type graph on a Cayley tree
Khatamov, Nosirjon M.
Kodirova, Malika A.
Mathematical Physics
Probability
In this paper, we investigate translation-invariant splitting Gibbs measures (TISGMs) for the HC-Blume-Capel model on a "wand" graph embedded in the Cayley tree of arbitrary order $k \geq 2$. It is known that there is the exact critical value $θ_{cr}$ such that for $θ\geq θ_{cr}$, there exists a unique TISGM, whereas for $θ< θ_{cr}$, precisely three TISGMs exist in the case of a "wand" graph for the given model. In the present paper, we completely solve the (non-)extremality problem for one of these measures for any order $k$ of Cayley tree
title Gibbs measure for the HC-Blume-Capel model in the case of a "wand" type graph on a Cayley tree
topic Mathematical Physics
Probability
url https://arxiv.org/abs/2603.28830