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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="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">cheb</journal-id><journal-title-group><journal-title xml:lang="ru">Чебышевский сборник</journal-title><trans-title-group xml:lang="en"><trans-title>Chebyshevskii Sbornik</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2226-8383</issn><publisher><publisher-name>Tula State Lev Tolstoy  Pedagogical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22405/2226-8383-2026-27-2-187-193</article-id><article-id custom-type="elpub" pub-id-type="custom">cheb-2241</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>Краткие сообщения</subject></subj-group></article-categories><title-group><article-title>О решетках нечетких топологий унарных алгебр</article-title><trans-title-group xml:lang="en"><trans-title>On lattices of fuzzy topologies on unary algebras</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Карташова</surname><given-names>Анна Владимировна</given-names></name><name name-style="western" xml:lang="en"><surname>Kartashova</surname><given-names>Anna Vladimirovna</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат физико-математических наук</p></bio><bio xml:lang="en"><p>candidate of physical and mathematical sciences</p></bio><email xlink:type="simple">kartashovaan@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Балаба</surname><given-names>Ирина Николаевна</given-names></name><name name-style="western" xml:lang="en"><surname>Balaba</surname><given-names>Irina Nikolaevna</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор физико-математических наук, профессор</p></bio><bio xml:lang="en"><p>doctor of physical and mathematical sciences, professor</p></bio><email xlink:type="simple">ibalaba@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Пихтилькова</surname><given-names>Ольга Александровна</given-names></name><name name-style="western" xml:lang="en"><surname>Pikhtilkova</surname><given-names>Olga Alexandrovna</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат физико-математических наук</p></bio><bio xml:lang="en"><p>candidate of physics and mathematics sciences</p></bio><email xlink:type="simple">opikhtilkova@mirea.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Волгоградский государственный социально-педагогический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Volgograd State Social and Pedagogical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Тульский государственный педагогический университет им. Л. Н. Толстого</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tula State Lev Tolstoy Pedagogical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Российский технологический университет МИРЭА</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Russian technological University MIREA</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>13</day><month>07</month><year>2026</year></pub-date><volume>27</volume><issue>2</issue><fpage>187</fpage><lpage>193</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Карташова А.В., Балаба И.Н., Пихтилькова О.А., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Карташова А.В., Балаба И.Н., Пихтилькова О.А.</copyright-holder><copyright-holder xml:lang="en">Kartashova A.V., Balaba I.N., Pikhtilkova O.A.</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://www.chebsbornik.ru/jour/article/view/2241">https://www.chebsbornik.ru/jour/article/view/2241</self-uri><abstract><p>Как известно, нечеткие множества – это классические объекты, обобщающие классические множества, где принадлежность элемента характеризуется функцией, принимающей значения в интервале [0, 1]. Нечеткие множества часто используются в различных прикладных исследованиях. Нечеткая топология как направление в математике возникла в результате синтеза идей и понятий теории нечетких множеств и нечеткой логики с предметом общей топологии и позволяет, в частности, по-новому взглянуть на многие факты общей топологии.В свою очередь, в работах ряда математиков методы нечеткой топологии применяются к различным алгебраическим системам (группам, векторным пространствам и другим).В настоящей заметке исследуются нечеткие топологии на унарных алгебрах, т.е. универсальных алгебрах, все сигнатурные операции которых имеют арность 1. Такие алгебры могут быть интерпретированы как полигоны над полугруппами или как алгебраические автоматы без выхода.В работе доказано, что нечеткие топологии на произвольной унарной алгебре образуют полную решетку по включению. При этом эта решетка является подрешеткой решетки всехнечетких топологий на носителе данной алгебры. Вопросы, связанные с описанием свойств и строения решеток нечетких топологий унарных алгебр, в настоящее время остаютсяоткрытыми.</p></abstract><trans-abstract xml:lang="en"><p>As is well known, fuzzy sets are classical objects that generalize classical sets, where the membership of an element is characterized by a function taking values from the interval [0, 1].Fuzzy sets are often used in various applied research. Fuzzy topology, as an area in mathematics, arose from the synthesis of ideas and concepts of fuzzy set theory and fuzzy logic with the subject of general topology and allows, in particular, to take a new look at many facts ofgeneral topology.In turn, in the papers of a number of mathematicians fuzzy topology methods are applied to different algebraic systems (groups, vector spaces, etc).In this note we investigate fuzzy topologies on unary algebras, i. e. universal algebras whose signature operations all have arity 1. Such algebras can be interpreted as acts over semigroups or as algebraic automata without output.We prove that fuzzy topologies on an arbitrary unary algebra form a complete lattice under inclusion. This lattice is a sublattice of the lattice of all fuzzy topologies on the underlying set of the given algebra. Problems related to the characterization of the properties and structureof fuzzy topologies lattices on unary algebras are currently open.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>нечеткие множества</kwd><kwd>нечеткие топологии на множествах</kwd><kwd>унарные алгебры</kwd><kwd>решетки нечетких топологий унарных алгебр.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>fuzzy sets</kwd><kwd>fuzzy topologies on sets</kwd><kwd>unary algebras</kwd><kwd>lattices of fuzzy topologies of unary algebras.</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">Zadeh L.A. 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