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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">kaz29</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Казахстанско-Британского технического университета</journal-title><trans-title-group xml:lang="en"><trans-title>Herald of the Kazakh-British Technical University</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1998-6688</issn><issn pub-type="epub">2959-8109</issn><publisher><publisher-name>Казахстанско-Британский Технический Университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.55452/1998-6688-2022-19-2-6-12</article-id><article-id custom-type="elpub" pub-id-type="custom">kaz29-516</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>ФИЗИКО-МАТЕМАТИЧЕСКИЕ И ТЕХНИЧЕСКИЕ НАУКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PHYSICAL, MATHEMATICAL AND TECHNICAL SCIENCES</subject></subj-group></article-categories><title-group><article-title>О ЗАПРОСАХ БАЗ ДАННЫХ НАД СЛАБО О-МИНИМАЛЬНОЙ ОБЛАСТЬЮ С МАЛЫМ СЧЕТНЫМ СПЕКТРОМ</article-title><trans-title-group xml:lang="en"><trans-title>ON DATABASE QUERIES OVER A WEAKLY O-MINIMAL DOMAIN WITH A SMALL COUNTABLE SPECTRUM</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9238-7131</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>АЛТАЕВА</surname><given-names>А. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>ALTAYEVA</surname><given-names>A. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алтаева Айжан Бакаткалиевна - магистр, докторант</p><p>050040, г. Алматы, пр. Аль-Фараби, 71</p></bio><bio xml:lang="en"><p>Altayeva Aizhan Bakatkalievna - master, PhD student</p><p>050040, Almaty, al-Farabi avenu, 71</p></bio><email xlink:type="simple">vip.altayeva@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Казахский национальный университет имени аль-Фараби<country>Казахстан</country></aff><aff xml:lang="en">Al-Farabi Kazakh National University<country>Kazakhstan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2022</year></pub-date><pub-date pub-type="epub"><day>01</day><month>07</month><year>2022</year></pub-date><volume>19</volume><issue>2</issue><fpage>6</fpage><lpage>12</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; АЛТАЕВА А.Б., 2022</copyright-statement><copyright-year>2022</copyright-year><copyright-holder xml:lang="ru">АЛТАЕВА А.Б.</copyright-holder><copyright-holder xml:lang="en">ALTAYEVA A.B.</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://vestnik.kbtu.edu.kz/jour/article/view/516">https://vestnik.kbtu.edu.kz/jour/article/view/516</self-uri><abstract><p>В реляционной модели баз данных, введенной Э.Ф. Коддом, состояние базы данных понимается как конечная совокупность отношений между элементами. Имена отношений и их арности (местности) фиксируются и называются схемой базы данных. Отдельная информация, хранимая в отношениях данной схемы, называется состоянием базы данных. Хотя реляционные базы данных были придуманы для конечных совокупностей данных, часто удобно предполагать, что существует бесконечная область определения. Мы исследуем реляционные базы данных над упорядоченной областью определения с некоторыми дополнительными отношениями – типичным примером является множество рациональных чисел с отношением линейного порядка и бинарной операцией сложения. Если в качестве языка запросов используется язык логики предикатов первого порядка, то запросы могут использовать как отношения базы данных, так и отношения области определения, при этом переменные изменяются на всей области определения. В фокусе наших исследований запросы первого порядка (FO), инвариантные относительно перестановок, сохраняющих порядок, такие запросы называются порядково-генерическими. Установлено, что для некоторых областей порядково-генерические запросы первого порядка сводятся к запросам чистого порядка. Здесь мы доказываем теорему сводимости над слабо о-минимальной областью определения, имеющей ранг выпуклости 1 и малый счетный спектр.</p></abstract><trans-abstract xml:lang="en"><p>In the relational database model introduced by E.F. Codd, the database state is understood as a finite set of relationships between elements. The names of the relationships and their arnts (locations) are fixed and called the database schema. The individual information stored in the relationships of this schema is called the state of the database. Although relational databases were devised for finite sets of data, it is often convenient to assume that there is an infinite domain. We consider relational databases organized over an ordered domain with some additional relations – a typical example is the set of rational numbers together with the relation of linear order and binary operation of addition. If the first-order predicate logic language is used as the query language, then queries can use both database relationships and domain relationships, with variables changing throughout the domain. In the focus of our study are the first-order (FO) queries that are invariant under order-preserving permutations – such queries are called order-generic. It was discovered that for some domains order-generic FO queries fail to express more than pure order queries. Here we prove the collapse result theorem over a weakly o-minimal domain having convexity rank 1 and a small countable spectrum.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>слабая о-минимальность</kwd><kwd>запрос баз данных</kwd><kwd>счетный спектр</kwd><kwd>почти омега-категоричность</kwd><kwd>ранг выпуклости</kwd></kwd-group><kwd-group xml:lang="en"><kwd>weak o-minimality</kwd><kwd>database query</kwd><kwd>countable spectrum</kwd><kwd>almost omega-categoricity</kwd><kwd>convexity rank</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Данные исследования поддержаны Ко- митетом науки Министерства образова- ния и науки Республики Казахстан (грант AP08855544).</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Codd E.F. 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