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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">najo</journal-id><journal-title-group><journal-title xml:lang="en">Nanosystems: Physics, Chemistry, Mathematics</journal-title><trans-title-group xml:lang="ru"><trans-title>Наносистемы: физика, химия, математика</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2220-8054</issn><issn pub-type="epub">2305-7971</issn><publisher><publisher-name>Университет ИТМО</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17586/2220-8054-2016-7-5-893-899</article-id><article-id custom-type="elpub" pub-id-type="custom">najo-1005</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Статьи</subject></subj-group></article-categories><title-group><article-title>Translation-invariant Gibbs measures for a model with logarithmic potential  on a Cayley tree</article-title><trans-title-group xml:lang="ru"><trans-title></trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Eshkabilov</surname><given-names>Yu. Kh.</given-names></name></name-alternatives><bio xml:lang="en"><p>Tashkent</p></bio><email xlink:type="simple">yusup62@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Bobonazarov</surname><given-names>Sh. P.</given-names></name></name-alternatives><bio xml:lang="en"><p>Tashkent</p></bio><email xlink:type="simple">bshp@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Teshaboev</surname><given-names>R. I.</given-names></name></name-alternatives><bio xml:lang="en"><p>Termez</p></bio><email xlink:type="simple">teshaboyev_1990@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff xml:lang="en" id="aff-1"><institution>National University of Uzbekistan</institution><country>Uzbekistan</country></aff><aff xml:lang="en" id="aff-2"><institution>Tashkent Institute of Irrigation and Melioration</institution><country>Uzbekistan</country></aff><aff xml:lang="en" id="aff-3"><institution>Termez State University</institution><country>Uzbekistan</country></aff><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>15</day><month>08</month><year>2025</year></pub-date><volume>7</volume><issue>5</issue><fpage>893</fpage><lpage>899</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Eshkabilov Y.K., Bobonazarov S.P., Teshaboev R.I., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Eshkabilov Y.K., Bobonazarov S.P., Teshaboev R.I.</copyright-holder><copyright-holder xml:lang="en">Eshkabilov Y.K., Bobonazarov S.P., Teshaboev R.I.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://nanojournal.ifmo.ru/jour/article/view/1005">https://nanojournal.ifmo.ru/jour/article/view/1005</self-uri><abstract><p>In this paper, we consider a model with logarithmical potential and with the set [0, 1] of spin values, on a Cayley tree Гk of the order k. In the case k = 2, 3, we shall prove that, there is a unique translation-invariant splitting Gibbs measure for this model. For the case k = 4, we show that there are three translation-invariant Gibbs measures for this model.</p></abstract><kwd-group xml:lang="en"><kwd>Cayley tree</kwd><kwd>configuration</kwd><kwd>translation-invariant Gibbs measure</kwd><kwd>fixed point</kwd><kwd>nonlinear operator</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Bleher P.M.,Ganikhodjaev N.N. On pure phases of the Ising model on the Bethe lattice. Theor.Probab. Appl., 1990, 35, P.216–227.</mixed-citation><mixed-citation xml:lang="en">Bleher P.M.,Ganikhodjaev N.N. On pure phases of the Ising model on the Bethe lattice. Theor.Probab. 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