Категорії: між кубічними та сферичними

• Date: 2019
• Main Author: Bespalov, Y.
• Format: Article
• Language: English
• Published: Publishing house "Academperiodika" 2019
• Online Access: https://ujp.bitp.kiev.ua/index.php/ujp/article/view/2019525
• Journal Title: Ukrainian Journal of Physics

For a finite partially ordered set I, we define an abstract polytope PI which is a cube or a globe in the cases of discrete or linear poset, respectively. For a poset P, we have built a small category ♦P with finite lower subsets in P as objects. This category ♦P = ♦P+♦P- is factorized...