Перегляд Algebra and Discrete Mathematics, 2017, Vol. 24, № 2 за назвою

Результати 11-13 з 13

The edge chromatic number of ΓI(R)

Kala, R.; Mallika, A.; Selvakumar, K. (Algebra and Discrete Mathematics, 2017)

For a commutative ring R and an ideal I of R, the ideal-based zero-divisor graph is the undirected graph ΓI(R) with vertices {x∈R−I:xy∈I for some y∈R−I}, where distinct vertices x and y are adjacent if and only if xy∈I. ...
Total global neighbourhood domination

Siva Rama Raju, S.V.; Nagaraja Rao, I.H. (Algebra and Discrete Mathematics, 2017)

A subset D of the vertex set of a connected graph G is called a total global neighbourhood dominating set (tgnd-set) of G if and only if D is a total dominating set of G as well as GN, where GN is the neighbourhood graph ...
Weak factorization systems and fibrewise regular injectivity for actions of pomonoids on posets

Farsad, F.; Madanshekaf, A. (Algebra and Discrete Mathematics, 2017)

Let S be a pomonoid. In this paper, Pos-S, the category of S-posets and S-poset maps, is considered. One of the main aims of this paper is to draw attention to the notion of weak factorization systems in Pos-S. We show ...

Результати 11-13 з 13

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