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2. On complementable semihypergroupsMorteza Jafarpour, Irina Cristea, Hossien Aghabozorgi, 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. Najdeno v: ključnih besedah Povzetek najdenega: ...(semi) hypergroup, complementable semihypergroup, disjoint semihypergroup, $K_H$-hypergroup... Ključne besede: (semi)hypergroup, complementable semihypergroup, disjoint semihypergroup, $K_H$-hypergroup Objavljeno: 03.03.2016; Ogledov: 3379; Prenosov: 1
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3. On dihedral hypergroupsIrina Elena Cristea, Morteza Jafarpour, F. Alizadeh, 2014, izvirni znanstveni članek Najdeno v: ključnih besedah Povzetek najdenega: ...dihedral group, regular hypergroup, reversible hypergroup, ... Ključne besede: dihedral group, regular hypergroup, reversible hypergroup Objavljeno: 16.06.2016; Ogledov: 3063; Prenosov: 13
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4. A method to compute the number of regular reversible Rosenberg hypergroupAli Tavakoli, Morteza Jafarpour, Irina Cristea, 2016, izvirni znanstveni članek Opis: The purpose of this note is the study of the hypergroups
associated with binary relations. New types of matrices, called i-very good and regular reversible matrices, are introduced in order to give some properties of the Rosenberg hypergroups related to them. A program written in $MATLAB$ computes the number of these hypergroups up to isomorphism. Najdeno v: ključnih besedah Ključne besede: hypergroup, binary relation, regular reversible
hypergroup, Boolean matrix Objavljeno: 02.09.2016; Ogledov: 3784; Prenosov: 0
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6. 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 Cristea, 2017, recenzija, prikaz knjige, kritika Najdeno v: ključnih besedah Povzetek najdenega: ...sine function, cosine function, locally compact hypergroup, functional equations on hypergroups... Ključne besede: sine function, cosine function, locally compact hypergroup, functional equations on hypergroups Objavljeno: 27.02.2017; Ogledov: 3349; Prenosov: 0
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7. A note on composition (m,n)-hyperringsIrina Cristea, Morteza Norouzi, 2017, izvirni znanstveni članek Opis: Based on the concepts of composition ring and composition hyperring, in this note we introduce the notion of composition structure for (m,n)-hyperrings and study the connections with composition hyperrings. Moreover we show that particular strong endomorphisms of (m,n)-hyperrings can determine the composition structure of such (m,n)-hyperrings. Finally, the three isomorphism theorems are presented in the case of composition (m, n)-hyperrings, showing that they are not a pure extension of those for composition hyperrings. Najdeno v: ključnih besedah Povzetek najdenega: ...n- hypergroup, (m,n)-hyperring, composition hyperideal... Ključne besede: n-hypergroup, (m, n)-hyperring, composition hyperideal Objavljeno: 13.07.2017; Ogledov: 3202; Prenosov: 0
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8. Hyperrings with n -ary composition hyperoperationMorteza Norouzi, Irina Cristea, 2017, izvirni znanstveni članek Opis: Based on the concepts of composition ring and composition hyperring, in this note we introduce the notion of $n$-ary composition hyperring and study the connections with composition hyperrings. Moreover we show that special strong multiendomorphisms of hyperrings can determine the
$n$-ary composition structure of a such hyperring and also a subclass of $n$-ary composition hyperrings. Finally, the three isomorphism theorems are studied in the framework of $n$-ary composition hyperrings. Najdeno v: ključnih besedah Povzetek najdenega: ...n-ary hypergroup, (m, n)-hyperring, composition hyperring, n-ary composition hyperideal... Ključne besede: n-ary hypergroup, (m, n)-hyperring, composition hyperring, n-ary composition hyperideal Objavljeno: 10.07.2017; Ogledov: 3144; Prenosov: 0
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9. Kawakami, Satoshi; Tsurii, Tatsuya; Yamanaka, Satoe Deformations of finite hypergroups. Sci. Math. Jpn. 79 (2016), no. 2, 113–123Irina Cristea, 2017, recenzija, prikaz knjige, kritika Najdeno v: ključnih besedah Povzetek najdenega: ...finite hypergroup, deformation,... Ključne besede: finite hypergroup, deformation Objavljeno: 24.08.2017; Ogledov: 3931; Prenosov: 0
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