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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">vestifm</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной академии наук Беларуси. Серия физико-математических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus. Physics and Mathematics Series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-2430</issn><issn pub-type="epub">2524-2415</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1561-2430-2020-56-4-408-410</article-id><article-id custom-type="elpub" pub-id-type="custom">vestifm-548</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>МАТЕМАТИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MATHEMATICS</subject></subj-group></article-categories><title-group><article-title>Топология частичной выпуклости</article-title><trans-title-group xml:lang="en"><trans-title>Topology of directional convexity</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>Найденко</surname><given-names>В. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Naidenko</surname><given-names>V. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Найденко Владимир Григорьевич – кандидат физико-математических наук, ведущий научный сотрудник</p><p>ул. Сурганова, 11, 220072, г. Минск</p></bio><bio xml:lang="en"><p>Vladimir G. Naidenko – Ph. D. (Physics and Mathematics), Leading Researcher</p><p>11, Surganov Str., 220072, Minsk</p></bio><email xlink:type="simple">naidenko@im.bas-net.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт математики Национальной академии наук Беларуси</institution></aff><aff xml:lang="en"><institution>Institute of Mathematics of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>31</day><month>12</month><year>2020</year></pub-date><volume>56</volume><issue>4</issue><elocation-id>408–410</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Найденко В.Г., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Найденко В.Г.</copyright-holder><copyright-holder xml:lang="en">Naidenko V.G.</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://vestifm.belnauka.by/jour/article/view/548">https://vestifm.belnauka.by/jour/article/view/548</self-uri><abstract><p>Подтверждена гипотеза Финка – Вуда о том, что если множество направляющих гиперплоскостей частичной выпуклости Oʹ является замыканием некоторого множества O, то множество X является замкнутым направленным полупространством частичной выпуклости с множеством направляющих гиперплоскостей Oʹ тогда и только тогда, когда X – замкнутое направленное полупространство частичной выпуклости с множеством направляющих гиперплоскостей O.</p></abstract><trans-abstract xml:lang="en"><p>Herein, we have proven a Fink – Wood conjecture that if Oʹ is the closure of some orientation set O, then a set is a directed O-halfspace if and only if it is a directed Oʹ-halfspace.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>выпуклость</kwd><kwd>обобщенная выпуклость</kwd><kwd>частичная выпуклость</kwd><kwd>топология</kwd><kwd>гипотеза Финка – Вуда</kwd></kwd-group><kwd-group xml:lang="en"><kwd>convexity</kwd><kwd>generalized convexity</kwd><kwd>restricted-orientation convexity</kwd><kwd>problem to recognize convexity</kwd><kwd>computational complexity</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">Rawlins, G. 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