Some combinatorial characteristics of closure operations
The aim of this paper investigates some combinatorial characteristics of minimal key and antikey of closure operations. We also give effective algorithms finding minimal keys and antikeys of closure operations. We estimate these algorithms. Some remarks on the closeness of closure operations class u...
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| Дата: | 2019 |
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| Автори: | , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Lugansk National Taras Shevchenko University
2019
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| Онлайн доступ: | https://admjournal.luguniv.edu.ua/index.php/adm/article/view/470 |
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| Назва журналу: | Algebra and Discrete Mathematics |
Репозитарії
Algebra and Discrete Mathematics| id |
oai:ojs.admjournal.luguniv.edu.ua:article-470 |
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oai:ojs.admjournal.luguniv.edu.ua:article-4702019-10-20T08:14:09Z Some combinatorial characteristics of closure operations Nguyen, Son Hoang Vu, Thi Duc closure operation, closure system, closed set, minimal key, antikey 68R99, 68P15 The aim of this paper investigates some combinatorial characteristics of minimal key and antikey of closure operations. We also give effective algorithms finding minimal keys and antikeys of closure operations. We estimate these algorithms. Some remarks on the closeness of closure operations class under the union and direct product operations are also studied in this paper. Lugansk National Taras Shevchenko University 2019-10-20 Article Article Peer-reviewed Article application/pdf https://admjournal.luguniv.edu.ua/index.php/adm/article/view/470 Algebra and Discrete Mathematics; Vol 28, No 1 (2019) 2415-721X 1726-3255 en https://admjournal.luguniv.edu.ua/index.php/adm/article/view/470/pdf Copyright (c) 2019 Algebra and Discrete Mathematics |
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Algebra and Discrete Mathematics |
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| datestamp_date |
2019-10-20T08:14:09Z |
| collection |
OJS |
| language |
English |
| topic |
closure operation closure system closed set minimal key antikey 68R99 68P15 |
| spellingShingle |
closure operation closure system closed set minimal key antikey 68R99 68P15 Nguyen, Son Hoang Vu, Thi Duc Some combinatorial characteristics of closure operations |
| topic_facet |
closure operation closure system closed set minimal key antikey 68R99 68P15 |
| format |
Article |
| author |
Nguyen, Son Hoang Vu, Thi Duc |
| author_facet |
Nguyen, Son Hoang Vu, Thi Duc |
| author_sort |
Nguyen, Son Hoang |
| title |
Some combinatorial characteristics of closure operations |
| title_short |
Some combinatorial characteristics of closure operations |
| title_full |
Some combinatorial characteristics of closure operations |
| title_fullStr |
Some combinatorial characteristics of closure operations |
| title_full_unstemmed |
Some combinatorial characteristics of closure operations |
| title_sort |
some combinatorial characteristics of closure operations |
| description |
The aim of this paper investigates some combinatorial characteristics of minimal key and antikey of closure operations. We also give effective algorithms finding minimal keys and antikeys of closure operations. We estimate these algorithms. Some remarks on the closeness of closure operations class under the union and direct product operations are also studied in this paper. |
| publisher |
Lugansk National Taras Shevchenko University |
| publishDate |
2019 |
| url |
https://admjournal.luguniv.edu.ua/index.php/adm/article/view/470 |
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AT nguyensonhoang somecombinatorialcharacteristicsofclosureoperations AT vuthiduc somecombinatorialcharacteristicsofclosureoperations |
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2025-07-17T10:36:25Z |
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2025-07-17T10:36:25Z |
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1837890100668661760 |