Browsing by Author "Protasov, I. V."

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  • Binary coronas of balleans 
    Protasov, I. V. (Луганский национальный университет им. Т. Шевченко, 2003)
  • Color-detectors of hypergraphs 
    Protasov, I. V.; Protasova, O. I. (Луганский национальный университет им. Т. Шевченко, 2005)
    Let X be a set of cardinality k, F be a family of subsets of X. We say that a cardinal , < k, is a color-detector of the hypergraph H = (X,F) if card (X) for every coloring : X ! k such that card (F) for ...
  • Exact sequences of graphs Ahmad Abbasi and Ali Ramin 
    Protasov, I. V. (ДЗ "ЛНУ імені Тараса Шевченка", 2019)
    In this paper, exact sequences of graphs are defined and investigated. Considering some functors on the category of graphs, we study some conditions to determine exactness of functors.
  • Geometry of flocks and n-ary groups Sonia Dog 
    Protasov, I. V. (ДЗ "ЛНУ імені Тараса Шевченка", 2019)
    Semiabelinan flocks and n-ary groups are charac- terized by the properties of parallelograms and vectors of the affine geometry defined by these flocks and n-ary groups.
  • Uniform ball structures 
    Protasov, I. V. (Луганский национальный университет им. Т. Шевченко, 2003-01-31)