81. A new type of fuzzy subsemihypermodulesMorteza Norouzi, Irina Elena Cristea, 2017, izvirni znanstveni članek Opis: In this paper, combining the notions of “belongingness” and “quasi coincidence” of fuzzy points and fuzzy subsets, a new type of fuzzy subsemihypermodules, namely (∝, ⋐k)-fuzzy subsemihypermodules of general hypermodules, is introduced and characterized, using the “max” operator. Their properties and connections with other (α, β)-fuzzy subsemihypermodules are investigated. Ključne besede: General hypermodule, (∝, ⋐k)-fuzzy subsemihypermodule, (∝, ∝)-fuzzy subsemihypermodule, (∝, qk)-fuzzy subsemihypermodule Objavljeno v RUNG: 01.03.2017; Ogledov: 3423; Prenosov: 1 Gradivo ima več datotek! Več... |
82. Fechner, Zywilla (D-ULM-MFN) ; Szekelyhidi, Laszlo (H-LAJO-IM) Sine functions on hypergroups.(English summary) Arch. Math. (Basel) 106 (2016), no. 4, 371 - 382.Irina Elena Cristea, 2017, recenzija, prikaz knjige, kritika Ključne besede: sine function, cosine function, locally compact hypergroup, functional equations on hypergroups Objavljeno v RUNG: 27.02.2017; Ogledov: 4115; Prenosov: 0 Gradivo ima več datotek! Več... |
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88. Fuzzy Subhypergroups DegreeIrina Elena Cristea, 2016, izvirni znanstveni članek Opis: In this paper we define the degree to which a fuzzy subset on a hypergroup is a fuzzy subhypergroup by means of the residuate sets, constructed using the minimum t-norm. We give also some properties of this new index connected with the intersection of a family of fuzzy subhypergroups, and respectively with the homomorphic image/preimage of a fuzzy subset. We conclude with addressing new problems related with intuitionistic fuzzy subhypergroups and fuzzy subpolygroups in the framework of our discussion. Ključne besede: Fuzzy set, fuzzy subhypergroup, residuate set, t-norm Objavljeno v RUNG: 24.06.2016; Ogledov: 4221; Prenosov: 0 Gradivo ima več datotek! Več... |
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90. On complementable semihypergroupsHossien Aghabozorgi, Irina Elena Cristea, Morteza Jafarpour, 2016, izvirni znanstveni članek Opis: n this paper, we first introduce the notion of complementable semihypergroup, proving that the classes of simplifiable semigroups, groups, and complete hypergroups are examples of complementable semihypergroups. Then we define when two semihypergroups are disjoint and find examples of such semihypergroups. Finally, we discuss on the complementable property of $K_H$-hypergroups. Ključne besede: (semi)hypergroup, complementable semihypergroup, disjoint semihypergroup, $K_H$-hypergroup Objavljeno v RUNG: 03.03.2016; Ogledov: 4099; Prenosov: 1 Gradivo ima več datotek! Več... |