Results 71 to 80 of about 210 (144)

Cartesian composition and the problem of generalizing the MAC condition to quasi-multiautomata

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2016
When we assume that the input-set of an automaton without output is a semihypergroup instead of a monoid, we talk about quasi-multiautomata. Even though cartesian composition of quasi-automata is a commonly used concept, the cartesian composition of ...
Chvalina Jan, Kŕehlík Štěpán, Novák Michal   +2 more
doaj   +1 more source

Existence of proper semihypergroups of type U on the right [PDF]

, 2007
We generalize the classical definition of hypergroups of type U on the right to semihypergroups, and we prove some properties of their subsemihypergroups and subhypergroups.
FASINO, Dario, FRENI, Domenico
core   +1 more source

Computation in Algebraic Hyperstructures

Computation
The concept of the relation β plays a central role in the study of hypercompositional structures. In this paper, we extend the definition of β to the general framework of hypergroupoids and develop an algorithm to compute its elements and its transitive ...
Yuming Feng, Enrico Talotti, Violeta Leoreanu-Fotea   +2 more
doaj   +1 more source

Atanassov's intuitionistic fuzzy Gamma - hyperideals of Gamma - semihypergroups

, 2013
The notion of intuitionistic fuzzy sets was introduced by Atanassov as a generalization of the notion of fuzzy sets. In this paper, we apply this concept to Gamma - semihypergroups and we introduce the notion of an intuitionistic fuzzy Gamma - hyperideal
DAVVAZ, B., ERSOY, Bayram Ali
core   +1 more source

ON HYPERRINGS ASSOCIATED WITH BINARY RELATIONS ON SEMIHYPERGROUP

, 2013
In this paper we construct a class of hyperrings associated with binary relations on semihypergroup. We establish a connection between the constructed hyperring (H, + ρ1 , ◦ ρ2) and the hyperring of multiendomorphisms of hypergroup (H, + ρ1 ).  Also,
Jančić Rašović, Sanja
core  

Pre-semihyperadditive Categories

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2019
In this paper we extend the notion of classical (pre-)semiadditive category to (pre-)semihyperadditive category. Algebraic hyperstructures are algebraic systems whose objects possessing the hyperoperations or multi-valued operation.
Shojaei H., Ameri R., Hoskova-Mayerova S.   +2 more
doaj   +1 more source

Characterizations of regular and intra-regular ordered $\Gamma$-semihypergroups in terms of bi-$\Gamma$-hyperideals

Karpatsʹkì Matematičnì Publìkacìï, 2019
The concept of $\Gamma$-semihypergroups is a generalization of semigroups, a generalization of semihypergroups and a generalization of $\Gamma$-semigroups.
S. Omidi, B. Davvaz, K. Hila
doaj   +1 more source

K_H-hypergroups

, 1982
It is known that we can obtain from a semigroup S a class H of complete semihypergroups such that, for every semihypergroup H∈H , H/β* =S . In this paper the author generalizes the previous construction, obtaining some interesting results on a ...
DE SALVO, Mario
core  

Minimal order semihypergroups of type U on the right, II [PDF]

, 2011
We prove a new characterization of the heart W_H and of the derived D_H of a finite semihypergroup H of type U on the right, in terms of its hyperproducts.
Domenico Freni, FRENI, Domenico
core   +1 more source

Topological amenability of semihypergroups

Forum Mathematicum
Abstract In this article, we introduce and explore the notion of topological amenability in the broad setting of (locally compact) semihypergroups. We acquire several stationary, ergodic and Banach algebraic characterizations of the same in terms of convergence of certain probability measures, total variation of convolution with ...
openaire   +2 more sources