Results 91 to 100 of about 398 (137)

Path hypergroupoids: Commutativity and graph connectivity

European Journal of Combinatorics, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Antonios Kalampakas, Stefanos Spartalis
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Isomorphisms of Finite Hypergroupoids

, 1988
Summary We characterize a particular class of finite commutative hypergroupoids, called minimal hypergroupoids , such that for every finite commutative hypergroupoid H, there exists one and only one minimal hypergroupoid isomorphic to H. We denote it with MIN(H).
Renato Migliorato
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Feebly associativeP-hypergroupoids

Rendiconti del Circolo Matematico di Palermo, 2000
The concept of \(P\)-hyperoperation on a semihypergroup, using any subset, was introduced in the early 1980's. In this paper, it is studied the class of \(P\)-hypergroupoids when they satisfy the feebly associative property. Properties of the feebly associative \(P\)-hypergroupoids related to the \(\beta^*\) relation are obtained. It is also considered
MIGLIORATO, Renato, SPARTALIS S.
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FUZZY PSEUDOTOPOLOGICAL HYPERGROUPOIDS

, 2009
On a hypergroupoid one can define a topology such that the hy- peroperation is pseudocontinuous or continuous. In this paper we extend this concepts to the fuzzy case. We give a connection between the classical and the fuzzy (pseudo)continuous hyperoperations.
Irina Cristea, Šárka Hošková-Mayerová   +1 more
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On the Prime Radical of a Hypergroupoid [PDF]

Journal of Mathematics and Statistics, 2005
In this study, we give definitions of a prime ideal, a s-semiprime ideal and a w-semiprime ideal for a hypergroupoid K. For an ideal A of K we show that radical of A (R(A)) can be represented as the intersection of all prime ideals of K containing A and we define a strongly A-nilpotent element.
Gürsel Yeşіlot
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An overview of topological hypergroupoids

Journal of Intelligent & Fuzzy Systems, 2018
On a hypergroup, one can define a topology such that the hyperoperation is pseudocontinuous. The purpose of this paper is to study examples of topological hypergroupoids. We show that there is no relation (in general) between pseudotopological and strongly pseudotopological hypergroupoids. In particular, we present a topological hypergroupoid that does
Madeline Al Tahan, Šárka Hošková-Mayerová, Bijan Davvaz   +2 more
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Results on generalized intuitionistic fuzzy hypergroupoids

Journal of Intelligent & Fuzzy Systems, 2019
 In this paper, we introduce and study the concept of generalized intuitionistic fuzzy hypergraph (shortly, g-if-hypergraph) and establish a relation between generalized if-hypergraph and if-hyperstructures. Further, we introduce partial if-hypergroupoid and extend the results for higher order if-hypergroupoids and study their properties.
Nabanita Konwar, Bijan Davvaz, Pradip Debnath   +2 more
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Hypergroupoids and combinatorial structures

, 1992
Let \((H,\circ)\) be a finite hypergroupoid and associate to \(H\) the family of subsets of \(H\) \[ {\mathcal B} = \{x\circ y\mid (x,y) \in H^ 2\} = \{X_ 1^{(n_ 1)},\dots,X_ s^{(n_ s)}\} \] where the exponents in brackets denote the multiplicities. \((H,{\mathcal B})\) is a block design and it is called the design associated to \((H,\circ)\).
Mario De Salvo
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Associativity Test in Hypergroupoids

36th International Symposium on Multiple-Valued Logic (ISMVL'06), 2006
To test whether a groupoid is a semigroup can be tedious and the same difficulty arises for partial hypergroupoids. We adapt Light’s associativity test to partial hypergroupoids and for finite hypergroupoids express it in matricial terms.
M. Miyakawa, I.G. Rosenberg, H. Tatsumi
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A note on quasi-Steiner hypergroupoids

Journal of Discrete Mathematical Sciences and Cryptography, 2003
Abstract The class of hyperstructures called quasi-Steiner hypergroupoids are studied and their group of automorphisms are found in some interesting cases. In particular, there exist quasi-Steiner hypergroupoids (H, ○) which group of automorphisms is exactly the group of automorphisms fixing a point and a line in the geometric space associated to (H, ○)
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